Difference between revisions of "Iowa County Creation Dates and Parent Counties"

From FamilySearch Wiki
Jump to: navigation, search
(added proposed counties)
(fixed links)
(7 intermediate revisions by 3 users not shown)
Line 1: Line 1:
{| border="1"
+
<br>
 +
 
 +
{{Note|See an interactive outline map of [http://historical-county.newberry.org/website/Iowa/viewer.htm ''Iowa Historical Counties''] at Newberry Library site<ref>[http://historical-county.newberry.org/website/Iowa/viewer.htm ''Iowa Atlas of Historical County Boundaries'', John H. Long, Editor; Peggy Tuck Sinko, Associate Editor; Gordon DenBoer, Historical Compiler; Douglas Knox, Book Digitizing Director and Digital Compiler; Emily Kelley, Research Associate; Laura Rico-Beck, GIS Specialist; Peter Siczewicz, ArcIMS Interactive Map Designer; Robert Will, Cartographic Assistant. Copyright The Newberry Library 2008.</ref> (Free) Enter a year, '''Refresh Map''', select '''zoom in''', then click on the map to enlarge it.}} 0 <br> {{Tip|Sort the table by '''Date Formed''' or by '''Parent Counties''' and check [http://historical-county.newberry.org/website/Iowa/documents/IA_County_Index.htm Boundary Changes] for interesting insights.}}
 +
 
 +
{| border="1" width="110%" class="sortable"
 
|-
 
|-
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" | '''Name of County'''  
+
| align="center" style="background: rgb(240,240,240); moz-background-clip: -moz-initial; moz-background-origin: -moz-initial; moz-background-inline-policy: -moz-initial" | '''Name of County'''  
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" | '''Date Formed'''  
+
| align="center" style="background: rgb(240,240,240); moz-background-clip: -moz-initial; moz-background-origin: -moz-initial; moz-background-inline-policy: -moz-initial" | '''Date Formed'''  
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" | '''Parent County'''  
+
| align="center" style="background: rgb(240,240,240); moz-background-clip: -moz-initial; moz-background-origin: -moz-initial; moz-background-inline-policy: -moz-initial" | '''[http://historical-county.newberry.org/website/Illinois/documents/IL_County_Index.htm Boundary<br>Changes]'''
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" | '''Progeny County'''
+
| align="center" style="background: rgb(240,240,240); moz-background-clip: -moz-initial; moz-background-origin: -moz-initial; moz-background-inline-policy: -moz-initial" | '''Parent Counties'''  
 +
| align="center" style="background: rgb(240,240,240); moz-background-clip: -moz-initial; moz-background-origin: -moz-initial; moz-background-inline-policy: -moz-initial" | '''Counties created by <br>boundary changes<ref>ibid. ''Illinois: Individual County Chronologies''</ref>'''
 
|-
 
|-
| [[Adair County, Iowa|Adair]]  
+
| [[Adair County, Iowa|Adair]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Cass  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#ADAIR Details]
 +
| Cass
 
| none
 
| none
 
|-
 
|-
| [[Adams County, Iowa|Adams]]  
+
| [[Adams County, Iowa|Adams]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Taylor  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#ADAMS Details]
 +
| Taylor
 
| none
 
| none
 
|-
 
|-
| [[Allamakee County, Iowa|Allamakee]]  
+
| [[Allamakee County, Iowa|Allamakee]]
| 1847  
+
| 1847  
| Clayton  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#ALLAMAKEE Details]
 +
| Clayton
 
| none
 
| none
 
|-
 
|-
| [[Appanoose County, Iowa|Appanoose]]  
+
| [[Appanoose County, Iowa|Appanoose]]
| 17 Feb 1843
+
| 1843 Feb 17  
| Davis  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#APPANOOSE Details]
 +
| Davis
 
| Decatur 1846
 
| Decatur 1846
 
|-
 
|-
| [[Audubon County, Iowa|Audubon]]  
+
| [[Audubon County, Iowa|Audubon]]
| nowrap="nowrap" | 15 Jan 1851
+
| 1851 Jan 15
| Cass, Black Hawk  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#AUDUBON Details]
 +
| Cass, Black Hawk
 
| none
 
| none
 
|-
 
|-
| Bancroft  
+
| [[Bancroft County, Iowa|Bancroft]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Kossuth  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#BANCROFT Details]
 +
| Kossuth
 
| declared unconstitutional 1871
 
| declared unconstitutional 1871
 
|-
 
|-
| Belknap  
+
| Belknap
| 1874  
+
| 1874  
| Pottawattamie  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#BELKNAP Details]
 +
| Pottawattamie
 
| rejected by voters 1876
 
| rejected by voters 1876
 
|-
 
|-
| [[Benton County, Minnesota|Benton]]  
+
| [[Benton County, Iowa|Benton]]
| 21 Dec 1837
+
| 1837 Dec 21  
| old Dubuque  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#BENTON Details]
 +
| old Dubuque
 
| Ida 1851, Kossuth 1851, Marshall 1846, Sac 1851, Story 1846, Tama 1843
 
| Ida 1851, Kossuth 1851, Marshall 1846, Sac 1851, Story 1846, Tama 1843
 
|-
 
|-
| [[Black Hawk County, Iowa|Black Hawk]]  
+
| [[Black Hawk County, Iowa|Black Hawk]]
| 05 Jun 1846
+
| 1846 Jun 05  
| Delaware  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#BLACK%20HAWK Details]
 +
| Delaware
 
| Audubon 1851, Butler 1851, Grundy 1851, Hardin 1851
 
| Audubon 1851, Butler 1851, Grundy 1851, Hardin 1851
 
|-
 
|-
| [[Boone County, Iowa|Boone]]  
+
| [[Boone County, Iowa|Boone]]
| 05 Jun 1846
+
| 1846 Jun 05  
| Polk  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#BOONE Details]
 +
| Polk
 
| none
 
| none
 
|-
 
|-
| [[Bremer County, Iowa|Bremer]]  
+
| [[Bremer County, Iowa|Bremer]]
| 15 Jan 1851
+
| 1851 Jan 15  
| nowrap="nowrap" | Winnebago Indian reserve  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#BREMER Details]
 +
| nowrap="nowrap" | Winnebago Indian reserve
 
| none
 
| none
 
|-
 
|-
| [[Buchanan County, Iowa|Buchanan]]  
+
| [[Buchanan County, Iowa|Buchanan]]
| 21 Dec 1837
+
| 1837 Dec 21  
| old Dubuque  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#BUCHANAN Details]
 +
| old Dubuque
 
| Butler 1851, Pocahontas 1851, Ida 1851, Plymouth 1851, Sac 1851, Wright 1851
 
| Butler 1851, Pocahontas 1851, Ida 1851, Plymouth 1851, Sac 1851, Wright 1851
 
|-
 
|-
| Buncombe  
+
| [[Buncombe County, Iowa|Buncombe]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Woodbury, Webster  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#BUNCOMBE Details]
 +
| Woodbury, Webster
 
| renamed Lyon 1862
 
| renamed Lyon 1862
 
|-
 
|-
| [[Buena Vista County, Iowa|Buena Vista]]  
+
| [[Buena Vista County, Iowa|Buena Vista]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Sac, Clay  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#BUENA%20VISTA Details]
 +
| Sac, Clay
 
| none
 
| none
 
|-
 
|-
| [[Butler County, Iowa|Butler]]  
+
| [[Butler County, Iowa|Butler]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Buchanan, Black Hawk  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#BUTLER Details]
 +
| Buchanan, Black Hawk
 
| none
 
| none
 
|-
 
|-
| [[Calhoun County, Iowa|Calhoun]]  
+
| [[Calhoun County, Iowa|Calhoun]]
| 22 Jan 1853
+
| 1853 Jan 22  
| renamed from Fox  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#CALHOUN Details]
 +
| renamed from Fox
 
| none
 
| none
 
|-
 
|-
| [[Carroll County, Iowa|Carroll]]  
+
| [[Carroll County, Iowa|Carroll]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Gutherie  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#CARROLL Details]
 +
| Gutherie
 
| none
 
| none
 
|-
 
|-
| [[Cass County, Iowa|Cass]]  
+
| [[Cass County, Iowa|Cass]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Pottawattamie  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#CASS Details]
 +
| Pottawattamie
 
| Adair 1851, Audubon 1851
 
| Adair 1851, Audubon 1851
 
|-
 
|-
| [[Cedar County, Iowa|Cedar]]  
+
| [[Cedar County, Iowa|Cedar]]
| 21 Dec 1837
+
| 1837 Dec 21  
| old Dubuque  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#CEDAR Details]
 +
| old Dubuque
 
| none
 
| none
 
|-
 
|-
| [[Cerro Gordo County, Iowa|Cerro Gordo]]  
+
| [[Cerro Gordo County, Iowa|Cerro Gordo]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Floyd  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#CERRO%20GORDO Details]
 +
| Floyd
 
| none
 
| none
 
|-
 
|-
| [[Cherokee County, Iowa|Cherokee]]  
+
| [[Cherokee County, Iowa|Cherokee]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Crawford  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#CHEROKEE Details]
 +
| Crawford
 
| none
 
| none
 
|-
 
|-
| [[Chickasaw County, Iowa|Chickasaw]]  
+
| [[Chickasaw County, Iowa|Chickasaw]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Fayette  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#CHICKASAW Details]
 +
| Fayette
 
| Franklin 1851
 
| Franklin 1851
 
|-
 
|-
| [[Clarke County, Iowa|Clarke]]  
+
| [[Clarke County, Iowa|Clarke]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Lucas  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#CLARK Details]
 +
| Lucas
 
| none
 
| none
 
|-
 
|-
| [[Clay County, Iowa|Clay]]  
+
| [[Clay County, Iowa|Clay]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Indian lands  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#CLAY Details]
 +
| Indian lands
 
| Buena Vista 1851
 
| Buena Vista 1851
 
|-
 
|-
| [[Clayton County, Iowa|Clayton]]  
+
| [[Clayton County, Iowa|Clayton]]
| 21 Dec 1837
+
| 1837 Dec 21  
| old Dubuque  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#CLAYTON Details]
 +
| old Dubuque
 
| Allamakee 1847, Fayette 1837
 
| Allamakee 1847, Fayette 1837
 
|-
 
|-
| [[Clinton County, Iowa|Clinton]]  
+
| [[Clinton County, Iowa|Clinton]]
| 21 Dec 1837
+
| 1837 Dec 21  
| old Dubuque  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#CLINTON Details]
 +
| old Dubuque
 
| none
 
| none
 
|-
 
|-
| [[Cook County, Iowa|Cook]]  
+
| [[Cook County, Iowa|Cook]]
| 07 Dec 1836
+
| 1836 Dec 07  
| Demoine  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#COOK Details]
 +
| Demoine
 
| extinct 1837
 
| extinct 1837
 
|-
 
|-
| [[Crawford County, Iowa|Crawford]]  
+
| [[Crawford County, Iowa|Crawford]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Shelby  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#CRAWFORD Details]
 +
| Shelby
 
| Cherokee 1851
 
| Cherokee 1851
 
|-
 
|-
| Crocker  
+
| [[Crocker County, Iowa|Crocker]]
| 1870  
+
| 1870  
| Bancroft, Kossuth  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#CROCKER Details]
 +
| Bancroft, Kossuth
 
| declared unconstitutional 1871
 
| declared unconstitutional 1871
 
|-
 
|-
| [[Dallas County, Iowa|Dallas]]  
+
| [[Dallas County, Iowa|Dallas]]
| 17 Jan 1846
+
| 1846 Jan 17  
| Polk  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#DALLAS Details]
 +
| Polk
 
| Greene 1851
 
| Greene 1851
 
|-
 
|-
| [[Davis County, Iowa|Davis]]  
+
| [[Davis County, Iowa|Davis]]
| 17 Feb 1843
+
| 1843 Feb 17  
| Van Buren  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#DAVIS Details]
 +
| Van Buren
 
| Appanoose 1843
 
| Appanoose 1843
 
|-
 
|-
| [[Decatur County, Iowa|Decatur]]  
+
| [[Decatur County, Iowa|Decatur]]
| 17 Jan 1846
+
| 1846 Jan 17  
| Appanoose  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#DECATUR Details]
 +
| Appanoose
 
| none
 
| none
 
|-
 
|-
| [[Delaware County, Iowa|Delaware]]  
+
| [[Delaware County, Iowa|Delaware]]
| 21 Dec 1837
+
| 1837 Dec 21  
| old Dubuque  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#DELAWARE Details]
 +
| old Dubuque
 
| Black Hawk 1843
 
| Black Hawk 1843
 
|-
 
|-
| Demoine  
+
| Demoine
| 01 Jun 1833
+
| 1833 Jun 01  
| Michigan Territory  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#DEMOINE Details]
 +
| Wisconsin Territory
 
| Des Moines 1836, Lee 1836, Henry 1836, Van Buren 1836, Louisa 1836, Cook 1836, Muscatine 1836
 
| Des Moines 1836, Lee 1836, Henry 1836, Van Buren 1836, Louisa 1836, Cook 1836, Muscatine 1836
 
|-
 
|-
| [[Des Moines County, Iowa|Des Moines]]  
+
| [[Des Moines County, Iowa|Des Moines]]
| 07 Dec 1836
+
| 1836 Dec 07  
| Demoine  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#DES%20MOINES Details]
| Story 1846, Taylor 1847, Union 1851, Madison 1844, Mahaska 1843, Marion 1845, Page 1847, Warren 1846, Wayne 1846
+
| Demoine
 +
| Story 1846, Taylor 1847, Union 1851, Madison 1844, Mahaska 1843,Marion 1845, Page 1847, Warren 1846, Wayne 1846
 
|-
 
|-
| [[Dickinson County, Iowa|Dickinson]]  
+
| [[Dickinson County, Iowa|Dickinson]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Kossuth  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#DICKINSON Details]
 +
| Kossuth
 
| Emmet 1851
 
| Emmet 1851
 
|-
 
|-
| Disputed Area 1
+
| Dubuque (old)
| 15 Dec 1838
+
| 1834 Sep 06
| Created from Van Buren, Clark (M0)  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#DUBUQUE%20(Old) Details]
| none
+
| Wisconsin Territory
 +
| Dubuque 1837, Clayton 1837,Jackson 1837, benton 1837, Linn 1837,Jones 1837, Clinton 1837, Johnson 1837, Scott 1837, Delaware 1837, Buchanan 1837, cedar 1837, Fayette 1837
 
|-
 
|-
| Disputed Area 2
+
| [[Dubuque County, Iowa|Dubuque]]
| 15 Jan 1851
+
| 1837 Dec 21
| Created from Guthrie
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#DUBUQUE Details]
 +
| old Dubuque
 
| none
 
| none
 
|-
 
|-
| Dubuque (old)
+
| [[Emmet County, Iowa|Emmet]]
| 06 Sep 1834
+
| 1851 Jan 15
| Michigan Territory
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#EMMET Details]
| Dubuque 1837, Clayton 1837, Jackson 1837, Benton 1837, Linn 1837, Jones 1837, Clinton 1837, Johnson 1837, Scott 1837, Delaware 1837, Buchanan 1837, Cedar 1837, Fayette 1837
+
| Kossuth, Dickinson
|-
 
| [[Dubuque County, Iowa|Dubuque]]  
 
| 21 Dec 1837
 
| old Dubuque
 
 
| none
 
| none
 
|-
 
|-
| [[Emmet County, Iowa|Emmet]]  
+
| [[Fayette County, Iowa|Fayette]]
| 15 Jan 1851
+
| 1837 Dec 21
| Kossuth, Dickinson
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#FAYETTE Details]
| none
+
| old Dubuque
 +
| Story 1846, Sioux 1851, Palo Alto 1851, Plymouth 1851,Tama 1843, Chickasaw 1851, Howard 1851, Osceola 1851, Pocahontas 1851, Mitchell 1851, O’Brien 1851, Winnebago 1847, Wright 1851, Winneshiek 1847, Worth 1851
 
|-
 
|-
| [[Fayette County, Iowa|Fayette]]  
+
| [[Floyd County, Iowa|Floyd]]
| 21 Dec 1837
+
| 1851 Jan 15
| old Dubuque
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#FLOYD Details]
| Story 1846, Sioux 1851, Palo Alto 1851, Plymouth 1851, Tama 1843, Chickasaw 1851, Howard 1851, Osceola 1851, Pocahontas 1851, Mitchell 1851, O’Brien 1851, Winnebago 1847, Wright 1851, Winneshiek 1847, Worth 1851
+
| Chickasaw
|-
 
| [[Floyd County, Iowa|Floyd]]
 
| 15 Jan 1851
 
| Chickasaw  
 
 
| Cerro Gordo 1851
 
| Cerro Gordo 1851
 
|-
 
|-
| Fox  
+
| [[Fox County, Iowa|Fox]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Pottawattamie  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#FOX Details]
 +
| Pottawattamie
 
| renamed Calhoun 1853
 
| renamed Calhoun 1853
 
|-
 
|-
| [[Franklin County, Iowa|Franklin]]  
+
| [[Franklin County, Iowa|Franklin]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Chickasaw  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#FRANKLIN Details]
 +
| Chickasaw
 
| none
 
| none
 
|-
 
|-
| [[Fremont County, Iowa|Fremont]]  
+
| [[Fremont County, Iowa|Fremont]]
| 1847  
+
| 1847  
| Pottawattamie  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#FREMONT Details]
 +
| Pottawattamie
 
| none
 
| none
 
|-
 
|-
| [[Greene County, Iowa|Greene]]  
+
| [[Greene County, Iowa|Greene]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Dallas  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#GREEN Details]
 +
| Dallas
 
| none
 
| none
 
|-
 
|-
| Grimes (proposed)
+
| Grimes
| 17 Mar 1876  
+
| 1876  
| Pottawattamie  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#GRIMES Details]
 +
| Pottawattamie
 
| rejected by voters 1876
 
| rejected by voters 1876
 
|-
 
|-
| [[Grundy County, Iowa|Grundy]]  
+
| [[Grundy County, Iowa|Grundy]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Black Hawk  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#GRUNDY Details]
 +
| Black Hawk
 
| none
 
| none
 
|-
 
|-
| [[Guthrie County, Iowa|Guthrie]]  
+
| [[Guthrie County, Iowa|Guthrie]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Jackson, Iowa  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#GUTHRIE Details]
 +
| Jackson, Iowa
 
| Carroll 1851
 
| Carroll 1851
 
|-
 
|-
| [[Hamilton County, Iowa|Hamilton]]  
+
| [[Hamilton County, Iowa|Hamilton]]
| 1856  
+
| 1856  
| Webster  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#HAMILTON Details]
 +
| Webster
 
| none
 
| none
 
|-
 
|-
| [[Hancock County, Iowa|Hancock]]  
+
| [[Hancock County, Iowa|Hancock]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Wright  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#HANCOCK Details]
 +
| Wright
 
| none
 
| none
 
|-
 
|-
| [[Hardin County, Iowa|Hardin]]  
+
| [[Hardin County, Iowa|Hardin]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Black Hawk  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#HARDIN Details]
 +
| Black Hawk
 
| none
 
| none
 
|-
 
|-
| [[Harrison County, Iowa|Harrison]]  
+
| [[Harrison County, Iowa|Harrison]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Pottawattamie  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#HARRISON Details]
 +
| Pottawattamie
 
| none
 
| none
 
|-
 
|-
| [[Henry County, Iowa|Henry]]  
+
| [[Henry County, Iowa|Henry]]
| 07 Dec 1836
+
| 1836 Dec 07  
| Demoine  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#HENRY Details]
 +
| Demoine
 
| Washington 1837
 
| Washington 1837
 
|-
 
|-
| Howard (M0.)
+
| [[Howard County, Iowa|Howard]]
| 01 Mar 1816
+
| 1851 Jan 15  
| Created from Mo Territory
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#HOWARD Details]
| none
+
| Fayette
|-
 
| [[Howard County, Iowa|Howard]]  
 
| 15 Jan 1851
 
| Fayette  
 
 
| none
 
| none
 
|-
 
|-
| Humbolt (old)  
+
| Humbolt (old)
| 15 Jan 1851
+
| 1851 Jan 15  
| Fayette  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#HUMBOLT%20(Old) Details]
 +
| Fayette
 
| extinct
 
| extinct
 
|-
 
|-
| [[Humboldt County, Iowa|Humboldt]]  
+
| [[Humboldt County, Iowa|Humboldt]]
| 26 Feb 1857
+
| 1857 Feb 26  
| Webster  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#HUMBOLT Details]
 +
| Webster
 
| none
 
| none
 
|-
 
|-
| [[Ida County, Iowa|Ida]]  
+
| [[Ida County, Iowa|Ida]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Buchanan, Benton  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#IDA Details]
 +
| Buchanan, Benton
 
| none
 
| none
 
|-
 
|-
| [[Iowa County, Iowa|Iowa]]  
+
| [[Iowa County, Iowa|Iowa]]
| 17 Feb 1843
+
| 1843 Feb 17  
| Washington  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#IOWA Details]
 +
| Washington
 
| Guthrie 1851
 
| Guthrie 1851
 
|-
 
|-
| [[Jackson County, Iowa|Jackson]]  
+
| [[Jackson County, Iowa|Jackson]]
| 21 Dec 1837
+
| 1837 Dec 21  
| old Dubuque  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#JACKSON Details]
 +
| old Dubuque
 
| Guthrie 1851
 
| Guthrie 1851
 
|-
 
|-
| [[Jasper County, Iowa|Jasper]]  
+
| [[Jasper County, Iowa|Jasper]]
| 17 Jan 1846
+
| 1846 Jan 17  
| Mahaska  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#JASPER Details]
 +
| Mahaska
 
| none
 
| none
 
|-
 
|-
| [[Jefferson County, Iowa|Jefferson]]  
+
| [[Jefferson County, Iowa|Jefferson]]
| 04 Nov 1839
+
| 1839 Nov 04  
| Indian lands  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#JEFFERSON Details]
 +
| Indian lands
 
| none
 
| none
 
|-
 
|-
| [[Johnson County, Iowa|Johnson]]  
+
| [[Johnson County, Iowa|Johnson]]
| 21 Dec 1837
+
| 1837 Dec 21  
| old Dubuque  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#JOHNSON Details]
 +
| old Dubuque
 
| none
 
| none
 
|-
 
|-
| [[Jones County, Iowa|Jones]]  
+
| [[Jones County, Iowa|Jones]]
| 21 Dec 1837
+
| 1837 Dec 21  
| old Dubuque  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#JONES Details]
 +
| old Dubuque
 
| none
 
| none
 
|-
 
|-
| Keokuk (old)  
+
| Keokuk (old)
| 21 Oct 1837
+
| 1837 Oct 21  
| Sac and Fox Indian lands  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#KEOKUK%20(Old) Details]
 +
| Sac and Fox Indian lands
 
| Keokuk 1843, Mahaska 1843
 
| Keokuk 1843, Mahaska 1843
 
|-
 
|-
| [[Keokuk County, Iowa|Keokuk]]  
+
| [[Keokuk County, Iowa|Keokuk]]
| 17 Feb 1837
+
| 1837 Feb 17  
| old Keokuk  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#KEOKUK Details]
 +
| old Keokuk
 
| Poweshiek 1848, Marion 1845, Jasper 1846, Shelby 1846, Story 1846, Warren 1846
 
| Poweshiek 1848, Marion 1845, Jasper 1846, Shelby 1846, Story 1846, Warren 1846
 
|-
 
|-
| Kishkekosh (now Monroe)
+
| [[Kishkekosh County, Iowa|Kishkekosh]]
| 31 Jan 1770
+
| 1843 Feb 17
| Created from Iowa Terr., "Area 4"
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#KISHKEKOSH Details]
| none
+
| Wapello
|-
 
| Kishkekosh
 
| 17 Feb 1843
 
| Wapello  
 
 
| renamed Monroe 1846
 
| renamed Monroe 1846
 
|-
 
|-
| [[Kossuth County, Iowa|Kossuth]]  
+
| [[Kossuth County, Iowa|Kossuth]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Fayette, Bancroft  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#KOSSUTH Details]
 +
| Fayette, Bancroft
 
| Dickinson 1851, Emmet 1851
 
| Dickinson 1851, Emmet 1851
 
|-
 
|-
| Larrabee (proposed)
+
| [[Lee County, Iowa|Lee]]
| 18 Apr 1913
+
| 1836 Dec 07
| Created from Kossuth
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#LEE Details]
 +
| Demoine
 
| none
 
| none
 
|-
 
|-
| [[Lee County, Iowa|Lee]]  
+
| [[Linn County, Iowa|Linn]]
| 07 Dec 1836
+
| 1837 Dec 21
| Demoine
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#LINN Details]
 +
| old Dubuque
 
| none
 
| none
 
|-
 
|-
| [[Linn County, Iowa|Linn]]  
+
| [[Louisa County, Iowa|Louisa]]
| 21 Dec 1837
+
| 1836 Dec 07
| old Dubuque
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#LOUISA Details]
| none
+
| Demoine
|-
 
| [[Louisa County, Iowa|Louisa]]
 
| 07 Dec 1836
 
| Demoine  
 
 
| Washington 1837
 
| Washington 1837
 
|-
 
|-
| [[Lucas County, Iowa|Lucas]]  
+
| [[Lucas County, Iowa|Lucas]]
| 05 Jun 1846
+
| 1846 Jun 05  
| Monroe  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#LUCAS Details]
 +
| Monroe
 
| Clark 1851
 
| Clark 1851
 
|-
 
|-
| [[Lyon County, Iowa|Lyon]]  
+
| [[Lyon County, Iowa|Lyon]]
| 11 Sep 1862
+
| 1862 Sep 11  
| renamed from Buncombe  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#LYON Details]
 +
| renamed from Buncombe
 
| none
 
| none
 
|-
 
|-
| Madison (proposed)
+
| [[Madison County, Iowa|Madison]]
| 15 Feb 1844
+
| 1844 Jun 16
| Created from Lee
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#MADISON Details]
 +
| Des Moines
 
| none
 
| none
 
|-
 
|-
| [[Madison County, Iowa|Madison]]  
+
| [[Mahaska County, Iowa|Mahaska]]
| 16 Jun 1844
+
| 1843 Feb 17
| Des Moines
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#MAHASKA Details]
| none
+
| Des Moines, Keokuk
|-
 
| [[Mahaska County, Iowa|Mahaska]]  
 
| 17 Feb 1843
 
| Des Moines, Keokuk  
 
 
| Jasper 1846
 
| Jasper 1846
 
|-
 
|-
| [[Marion County, Iowa|Marion]]  
+
| [[Marion County, Iowa|Marion]]
| nowrap="nowrap" | 05 May 1845
+
| 1845 May 05
| Des Moines, Keokuk  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#MARION Details]
| none
+
| Des Moines, Keokuk
|-
 
| [[Marshall County, Iowa|Marshall]]
 
| 05 Jun 1846
 
| Benton
 
| none
 
|-
 
| Michigan Territory
 
| 28 Jun 1834
 
| Created from Fed. Terr
 
 
| none
 
| none
 
|-
 
|-
| [[Mills County, Iowa|Mills]]  
+
| [[Marshall County, Iowa|Marshall]]
| 15 Jan 1851
+
| 1846 Jun 05
| Pottawattamie
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#MARSHALL Details]
 +
| Benton
 
| none
 
| none
 
|-
 
|-
| Missouri Territory
+
| [[Mills County, Iowa|Mills]]
| 31 Dec 1813
+
| 1851 Jan 15
| Became a non-county area in MO Terr.
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#MILLS Details]
 +
| Pottawattamie
 
| none
 
| none
 
|-
 
|-
| [[Mitchell County, Iowa|Mitchell]]  
+
| [[Mitchell County, Iowa|Mitchell]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Fayette  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#MITCHELL Details]
 +
| Fayette
 
| none
 
| none
 
|-
 
|-
| [[Monona County, Iowa|Monona]]  
+
| [[Monona County, Iowa|Monona]]
| Dec 1853  
+
| 1853 18 De
| Harrison  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#MONONA Details]
 +
| Harrison
 
| none
 
| none
 
|-
 
|-
| [[Monroe County, Iowa|Monroe]]  
+
| [[Monroe County, Iowa|Monroe]]
| 19 Jan 1846
+
| 1846 Jan 19  
| nowrap="nowrap" | renamed from Kishkekosh  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#MONROE Details]
 +
| nowrap="nowrap" | renamed from Kishkekosh
 
| Lucas 1846
 
| Lucas 1846
 
|-
 
|-
| [[Montgomery County, Iowa|Montgomery]]  
+
| [[Montgomery County, Iowa|Montgomery]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Polk  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#MONTGOMERY Details]
 +
| Polk
 
| none
 
| none
 
|-
 
|-
| [[Muscatine County, Iowa|Muscatine]]  
+
| [[Muscatine County, Iowa|Muscatine]]
| 07 Dec 1836
+
| 1836 Dec 07  
| Demoine  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#MUSCATINE Details]
 +
| Demoine
 
| Washington 1837
 
| Washington 1837
 
|-
 
|-
| [[O'Brien County, Iowa|O Brien]]  
+
| [[O&#39;Brien County, Iowa|O’Brien]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Fayette  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#O’BRIEN Details]
 +
| Fayette
 
| none
 
| none
 
|-
 
|-
| [[Osceola County, Iowa|Osceola]]  
+
| [[Osceola County, Iowa|Osceola]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Fayette  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#OSCEOLA Details]
 +
| Fayette
 
| none
 
| none
 
|-
 
|-
| [[Page County, Iowa|Page]]  
+
| [[Page County, Iowa|Page]]
| 1847  
+
| 1847  
| Des Moines  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#PAGE Details]
 +
| Des Moines
 
| none
 
| none
 
|-
 
|-
| [[Palo Alto County, Iowa|Palo Alto]]  
+
| [[Palo Alto County, Iowa|Palo Alto]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Fayette  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#PALO%20ALTO Details]
 +
| Fayette
 
| none
 
| none
 
|-
 
|-
| [[Plymouth County, Iowa|Plymouth]]  
+
| [[Plymouth County, Iowa|Plymouth]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Buchanan, Fayette  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#PLYMOUTH Details]
 +
| Buchanan, Fayette
 
| none
 
| none
 
|-
 
|-
| [[Pocahontas County, Iowa|Pocahontas]]  
+
| [[Pocahontas County, Iowa|Pocahontas]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Buchanan, Fayette  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#POCAHONTAS Details]
 +
| Buchanan, Fayette
 
| none
 
| none
 
|-
 
|-
| [[Polk County, Iowa|Polk]]  
+
| [[Polk County, Iowa|Polk]]
| 05 Jun 1846
+
| 1846 Jun 05  
| Indian lands  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#POLK Details]
 +
| Indian lands
 
| Boone 1846, Montgomery 1851, Dallas 1846
 
| Boone 1846, Montgomery 1851, Dallas 1846
 
|-
 
|-
| [[Pottawattamie County, Iowa|Pottawattamie]]  
+
| [[Pottawattamie County, Iowa|Pottawattamie]]
| 05 Jun 1846
+
| 1846 Jun 05  
| Pottawattamie Indian lands  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#POTTAWATTAMIE Details]
| Cass 1851, Fremont 1847, Harrison 1851, Jasper 1841, Taylor 1847, Union 1851
+
| Pottawattamie Indian lands
 +
| Cass 1851, Fremont 1847, harrison 1851, Jasper 1841, Taylor 1847, Union 1851
 
|-
 
|-
| [[Poweshiek County, Iowa|Poweshiek]]  
+
| [[Poweshiek County, Iowa|Poweshiek]]
| Apr 1848
+
| 1848 Apr
| Keokuk  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#POWESHIEK Details]
 +
| Keokuk
 
| none
 
| none
 
|-
 
|-
| [[Ringgold County, Iowa|Ringgold]]  
+
| [[Ringgold County, Iowa|Ringgold]]
| Aug 1854
+
| 1854 Aug
| Taylor  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#RINGGOLD Details]
 +
| Taylor
 
| none
 
| none
 
|-
 
|-
| [[Risley County, Iowa|Risley]]  
+
| [[Risley County, Iowa|Risley]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Hamilton  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#RISLEY Details]
 +
| Hamilton
 
| renamed 1853
 
| renamed 1853
 
|-
 
|-
| [[Sac County, Iowa|Sac]]  
+
| [[Sac County, Iowa|Sac]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Buchanan, Benton  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#SAC Details]
 +
| Buchanan, Benton
 
| Buena Vista 1851
 
| Buena Vista 1851
 
|-
 
|-
| [[Scott County, Iowa|Scott]]  
+
| [[Scott County, Iowa|Scott]]
| 21 Dec 1837
+
| 1837 Dec 21  
| old Dubuque  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#SCOTT Details]
 +
| old Dubuque
 
| none
 
| none
 
|-
 
|-
| [[Shelby County, Iowa|Shelby]]  
+
| [[Shelby County, Iowa|Shelby]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Keokuk  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#SHELBY Details]
 +
| Keokuk
 
| Crawford 1851
 
| Crawford 1851
 
|-
 
|-
| [[Sioux County, Iowa|Sioux]]  
+
| [[Sioux County, Iowa|Sioux]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Fayette  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#SIOUX Details]
 +
| Fayette
 
| none
 
| none
 
|-
 
|-
| Slaughter  
+
| [[Slaughter County, Iowa|Slaughter]]
| 21 Dec 1837
+
| 1837 Dec 21  
| Louisa, Muscatine, Henry  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#SLAUGHTER Details]
 +
| Louisa, Muscatine, Henry
 
| renamed Washington 1839
 
| renamed Washington 1839
 
|-
 
|-
| [[Story County, Iowa|Story]]  
+
| [[Story County, Iowa|Story]]
| 05 Jun 1846
+
| 1846 Jun 05  
| Benton  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#STORY Details]
 +
| Benton
 
| none
 
| none
 
|-
 
|-
| [[Tama County, Iowa|Tama]]  
+
| [[Tama County, Iowa|Tama]]
| 17 Feb 1843
+
| 1843 Feb 17  
| Benton  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#TAMA Details]
 +
| Benton
 
| none
 
| none
 
|-
 
|-
| [[Taylor County, Iowa|Taylor]]  
+
| [[Taylor County, Iowa|Taylor]]
| 1847  
+
| 1847  
| nowrap="nowrap" | Des Moines, Pottawattamie  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#TAYLOR Details]
 +
| Des Moines, Pottawattamie
 
| Adams 1851, Taylor 1847
 
| Adams 1851, Taylor 1847
 
|-
 
|-
| [[Union County, Iowa|Union]]  
+
| [[Union County, Iowa|Union]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Des Moines, Pottawattamie  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#UNION Details]
 +
| Des Moines, Pottawattamie
 
| none
 
| none
 
|-
 
|-
| [[Van Buren County, Iowa|Van Buren]]  
+
| [[Van Buren County, Iowa|Van Buren]]
| 07 dec 1836
+
| 1836 Dec 07  
| Demoine  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#VAN%20BUREN Details]
 +
| Demoine
 
| Davis 1843
 
| Davis 1843
 
|-
 
|-
| [[Wapello County, Iowa|Wapello]]  
+
| [[Wapello County, Iowa|Wapello]]
| 16 Jun 1844
+
| 1844 Jun 16  
| Indian lands  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#WAPELLO Details]
 +
| Indian lands
 
| none
 
| none
 
|-
 
|-
| [[Wahkaw County, Iowa|Wahkaw]]  
+
| [[Wahkaw County, Iowa|Wahkaw]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Benton, Buchanan  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#WAHKAW Details]
 +
| Benton, Buchanan
 
| renamed Woodbury 1853
 
| renamed Woodbury 1853
 
|-
 
|-
| [[Warren County, Iowa|Warren]]  
+
| [[Warren County, Iowa|Warren]]
| 05 Jun 1846
+
| 1846 Jun 05  
| Des Moines, Keokuk  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#WARREN Details]
 +
| Des Moines, Keokuk
 
| none
 
| none
 
|-
 
|-
| [[Washington County, Iowa|Washington]]  
+
| [[Washington County, Iowa|Washington]]
| 25 Jan 1839
+
| 1839 Jan 25  
| renamed from Slaughter  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#WASHINGTON Details]
 +
| renamed from Slaughter
 
| none
 
| none
 
|-
 
|-
| [[Wayne County, Iowa|Wayne]]  
+
| [[Wayne County, Iowa|Wayne]]
| 05 Jun 1846
+
| 1846 Jun 05  
| Des Moines  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#WAYNE Details]
 +
| Des Moines
 
| none
 
| none
 
|-
 
|-
| [[Webster County, Iowa|Webster]]  
+
| [[Webster County, Iowa|Webster]]
| 12 Jan 1853
+
| 1853 Jan 12  
| renamed from Risley  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#WEBSTER Details]
 +
| renamed from Risley
 
| Hamilton 1856, Humbolt 1857, Buncombe 1851
 
| Hamilton 1856, Humbolt 1857, Buncombe 1851
 
|-
 
|-
| [[Winnebago County, Iowa|Winnebago]]  
+
| [[Winnebago County, Iowa|Winnebago]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Fayette  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#WINNEBAGO Details]
 +
| Fayette
 
| none
 
| none
 
|-
 
|-
| [[Winneshiek County, Iowa|Winneshiek]]  
+
| [[Winneshiek County, Iowa|Winneshiek]]
| 1847  
+
| 1847  
| Fayette  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#WINNESHIEK Details]
 +
| Fayette
 
| none
 
| none
 
|-
 
|-
| [[Woodbury County, Iowa|Woodbury]]  
+
| [[Woodbury County, Iowa|Woodbury]]
| 12 Jan 1853
+
| 1853 Jan 12  
| renamed from Wahkaw  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#WOODBURY Details]
 +
| renamed from Wahkaw
 
| none
 
| none
 
|-
 
|-
| [[Worth County, Iowa|Worth]]  
+
| [[Worth County, Iowa|Worth]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Fayette  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#WORTH Details]
 +
| Fayette
 
| none
 
| none
 
|-
 
|-
| [[Wright County, Iowa|Wright]]  
+
| [[Wright County, Iowa|Wright]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Buchanan, Fayette  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#WRIGHT Details]
 +
| Buchanan, Fayette
 
| Hancock 1851
 
| Hancock 1851
 
|-
 
|-
| [[Yell County, Iowa|Yell]]  
+
| [[Yell County, Iowa|Yell]]
| 15 Jan 1851
+
| 1851 Jan 15  
| Indian lands  
+
| [http://publications.newberry.org/ahcbp/documents/IA_Individual_County_Chronologies.htm#YELL Details]
 +
| Indian lands
 
| extinct 1853, absorbed by Webster 1853 by voters
 
| extinct 1853, absorbed by Webster 1853 by voters
 
|}
 
|}
  
[[Category:United_States_County_Creations]]
+
[[Category:Iowa]]

Revision as of 21:07, 28 May 2014


0
Name of County Date Formed Boundary
Changes
Parent Counties Counties created by
boundary changes[2]
Adair 1851 Jan 15 Details Cass none
Adams 1851 Jan 15 Details Taylor none
Allamakee 1847 Details Clayton none
Appanoose 1843 Feb 17 Details Davis Decatur 1846
Audubon 1851 Jan 15 Details Cass, Black Hawk none
Bancroft 1851 Jan 15 Details Kossuth declared unconstitutional 1871
Belknap 1874 Details Pottawattamie rejected by voters 1876
Benton 1837 Dec 21 Details old Dubuque Ida 1851, Kossuth 1851, Marshall 1846, Sac 1851, Story 1846, Tama 1843
Black Hawk 1846 Jun 05 Details Delaware Audubon 1851, Butler 1851, Grundy 1851, Hardin 1851
Boone 1846 Jun 05 Details Polk none
Bremer 1851 Jan 15 Details Winnebago Indian reserve none
Buchanan 1837 Dec 21 Details old Dubuque Butler 1851, Pocahontas 1851, Ida 1851, Plymouth 1851, Sac 1851, Wright 1851
Buncombe 1851 Jan 15 Details Woodbury, Webster renamed Lyon 1862
Buena Vista 1851 Jan 15 Details Sac, Clay none
Butler 1851 Jan 15 Details Buchanan, Black Hawk none
Calhoun 1853 Jan 22 Details renamed from Fox none
Carroll 1851 Jan 15 Details Gutherie none
Cass 1851 Jan 15 Details Pottawattamie Adair 1851, Audubon 1851
Cedar 1837 Dec 21 Details old Dubuque none
Cerro Gordo 1851 Jan 15 Details Floyd none
Cherokee 1851 Jan 15 Details Crawford none
Chickasaw 1851 Jan 15 Details Fayette Franklin 1851
Clarke 1851 Jan 15 Details Lucas none
Clay 1851 Jan 15 Details Indian lands Buena Vista 1851
Clayton 1837 Dec 21 Details old Dubuque Allamakee 1847, Fayette 1837
Clinton 1837 Dec 21 Details old Dubuque none
Cook 1836 Dec 07 Details Demoine extinct 1837
Crawford 1851 Jan 15 Details Shelby Cherokee 1851
Crocker 1870 Details Bancroft, Kossuth declared unconstitutional 1871
Dallas 1846 Jan 17 Details Polk Greene 1851
Davis 1843 Feb 17 Details Van Buren Appanoose 1843
Decatur 1846 Jan 17 Details Appanoose none
Delaware 1837 Dec 21 Details old Dubuque Black Hawk 1843
Demoine 1833 Jun 01 Details Wisconsin Territory Des Moines 1836, Lee 1836, Henry 1836, Van Buren 1836, Louisa 1836, Cook 1836, Muscatine 1836
Des Moines 1836 Dec 07 Details Demoine Story 1846, Taylor 1847, Union 1851, Madison 1844, Mahaska 1843,Marion 1845, Page 1847, Warren 1846, Wayne 1846
Dickinson 1851 Jan 15 Details Kossuth Emmet 1851
Dubuque (old) 1834 Sep 06 Details Wisconsin Territory Dubuque 1837, Clayton 1837,Jackson 1837, benton 1837, Linn 1837,Jones 1837, Clinton 1837, Johnson 1837, Scott 1837, Delaware 1837, Buchanan 1837, cedar 1837, Fayette 1837
Dubuque 1837 Dec 21 Details old Dubuque none
Emmet 1851 Jan 15 Details Kossuth, Dickinson none
Fayette 1837 Dec 21 Details old Dubuque Story 1846, Sioux 1851, Palo Alto 1851, Plymouth 1851,Tama 1843, Chickasaw 1851, Howard 1851, Osceola 1851, Pocahontas 1851, Mitchell 1851, O’Brien 1851, Winnebago 1847, Wright 1851, Winneshiek 1847, Worth 1851
Floyd 1851 Jan 15 Details Chickasaw Cerro Gordo 1851
Fox 1851 Jan 15 Details Pottawattamie renamed Calhoun 1853
Franklin 1851 Jan 15 Details Chickasaw none
Fremont 1847 Details Pottawattamie none
Greene 1851 Jan 15 Details Dallas none
Grimes 1876 Details Pottawattamie rejected by voters 1876
Grundy 1851 Jan 15 Details Black Hawk none
Guthrie 1851 Jan 15 Details Jackson, Iowa Carroll 1851
Hamilton 1856 Details Webster none
Hancock 1851 Jan 15 Details Wright none
Hardin 1851 Jan 15 Details Black Hawk none
Harrison 1851 Jan 15 Details Pottawattamie none
Henry 1836 Dec 07 Details Demoine Washington 1837
Howard 1851 Jan 15 Details Fayette none
Humbolt (old) 1851 Jan 15 Details Fayette extinct
Humboldt 1857 Feb 26 Details Webster none
Ida 1851 Jan 15 Details Buchanan, Benton none
Iowa 1843 Feb 17 Details Washington Guthrie 1851
Jackson 1837 Dec 21 Details old Dubuque Guthrie 1851
Jasper 1846 Jan 17 Details Mahaska none
Jefferson 1839 Nov 04 Details Indian lands none
Johnson 1837 Dec 21 Details old Dubuque none
Jones 1837 Dec 21 Details old Dubuque none
Keokuk (old) 1837 Oct 21 Details Sac and Fox Indian lands Keokuk 1843, Mahaska 1843
Keokuk 1837 Feb 17 Details old Keokuk Poweshiek 1848, Marion 1845, Jasper 1846, Shelby 1846, Story 1846, Warren 1846
Kishkekosh 1843 Feb 17 Details Wapello renamed Monroe 1846
Kossuth 1851 Jan 15 Details Fayette, Bancroft Dickinson 1851, Emmet 1851
Lee 1836 Dec 07 Details Demoine none
Linn 1837 Dec 21 Details old Dubuque none
Louisa 1836 Dec 07 Details Demoine Washington 1837
Lucas 1846 Jun 05 Details Monroe Clark 1851
Lyon 1862 Sep 11 Details renamed from Buncombe none
Madison 1844 Jun 16 Details Des Moines none
Mahaska 1843 Feb 17 Details Des Moines, Keokuk Jasper 1846
Marion 1845 May 05 Details Des Moines, Keokuk none
Marshall 1846 Jun 05 Details Benton none
Mills 1851 Jan 15 Details Pottawattamie none
Mitchell 1851 Jan 15 Details Fayette none
Monona 1853 18 De Details Harrison none
Monroe 1846 Jan 19 Details renamed from Kishkekosh Lucas 1846
Montgomery 1851 Jan 15 Details Polk none
Muscatine 1836 Dec 07 Details Demoine Washington 1837
O’Brien 1851 Jan 15 Details Fayette none
Osceola 1851 Jan 15 Details Fayette none
Page 1847 Details Des Moines none
Palo Alto 1851 Jan 15 Details Fayette none
Plymouth 1851 Jan 15 Details Buchanan, Fayette none
Pocahontas 1851 Jan 15 Details Buchanan, Fayette none
Polk 1846 Jun 05 Details Indian lands Boone 1846, Montgomery 1851, Dallas 1846
Pottawattamie 1846 Jun 05 Details Pottawattamie Indian lands Cass 1851, Fremont 1847, harrison 1851, Jasper 1841, Taylor 1847, Union 1851
Poweshiek 1848 Apr Details Keokuk none
Ringgold 1854 Aug Details Taylor none
Risley 1851 Jan 15 Details Hamilton renamed 1853
Sac 1851 Jan 15 Details Buchanan, Benton Buena Vista 1851
Scott 1837 Dec 21 Details old Dubuque none
Shelby 1851 Jan 15 Details Keokuk Crawford 1851
Sioux 1851 Jan 15 Details Fayette none
Slaughter 1837 Dec 21 Details Louisa, Muscatine, Henry renamed Washington 1839
Story 1846 Jun 05 Details Benton none
Tama 1843 Feb 17 Details Benton none
Taylor 1847 Details Des Moines, Pottawattamie Adams 1851, Taylor 1847
Union 1851 Jan 15 Details Des Moines, Pottawattamie none
Van Buren 1836 Dec 07 Details Demoine Davis 1843
Wapello 1844 Jun 16 Details Indian lands none
Wahkaw 1851 Jan 15 Details Benton, Buchanan renamed Woodbury 1853
Warren 1846 Jun 05 Details Des Moines, Keokuk none
Washington 1839 Jan 25 Details renamed from Slaughter none
Wayne 1846 Jun 05 Details Des Moines none
Webster 1853 Jan 12 Details renamed from Risley Hamilton 1856, Humbolt 1857, Buncombe 1851
Winnebago 1851 Jan 15 Details Fayette none
Winneshiek 1847 Details Fayette none
Woodbury 1853 Jan 12 Details renamed from Wahkaw none
Worth 1851 Jan 15 Details Fayette none
Wright 1851 Jan 15 Details Buchanan, Fayette Hancock 1851
Yell 1851 Jan 15 Details Indian lands extinct 1853, absorbed by Webster 1853 by voters
  1. [http://historical-county.newberry.org/website/Iowa/viewer.htm Iowa Atlas of Historical County Boundaries, John H. Long, Editor; Peggy Tuck Sinko, Associate Editor; Gordon DenBoer, Historical Compiler; Douglas Knox, Book Digitizing Director and Digital Compiler; Emily Kelley, Research Associate; Laura Rico-Beck, GIS Specialist; Peter Siczewicz, ArcIMS Interactive Map Designer; Robert Will, Cartographic Assistant. Copyright The Newberry Library 2008.
  2. ibid. Illinois: Individual County Chronologies