Piatt County, Illinois Genealogy

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Piatt County, Illinois
Boundary map of Piatt County, Illinois
Map of the U.S. highlighting Illinois
Location of Illinois in the U.S.
Founded: January 27, 1841
County Seat Monticello
Piatt County Courthouse.gif
Photo courtesy Illinois Regional Archives Depository, Illinois State Archives
Address Piatt County Courthouse
101 West Washington Street
Monticello, Illinois 61856
(217) 762-9487
Piatt County Website



United States Gotoarrow.png Illinois Gotoarrow.png Piatt County

Piatt County Organization

                                     Beginning Dates for Piatt County Records
Birth Marriage Death Census Land Probate

County records are most often kept at the County Courthouse or another local repository. For further information about where the records for Piatt County are kept, see the Piatt County Courthouse page.

Historical Facts

The county as named for James A. Piatt, Sr. who settled in the area of the present county in 1829. Jesse Warner also was instrumental in helping to form the county and the county was named for James after winning a coin flip against Jesse Warner.[1]

Parent County

  • 1841--Piatt County was created 27 January 1841 from DeWitt and Macon Counties. County seat: Monticello [2]

Boundary Changes

1839-1841 DeWitt

1831-1841 Macon

1831-1839 McLean

1827-1831 Shelby

1821-1827 Fayette

1819-1821 Clark

1816-1819 Crawford

1815-1816 Edwards

1812-1815 Madison

1801-1812 St. Clair

1790-1801 Knox, Northwest Territory

See an interactive map of Piatt County boundary changes.

Records and Resources



Illinois cemetery records often identify birth, death, relationship, and military information, as well as religious affiliation.

  • Find A Grave can be searched by the name of a person or family to find where a person is buried.  Usually gives birth and death dates often with a picture of the tombstone.  May give obituaries, names of family members and links to their information in Find A Grave.


Historical populations
Census Pop.
IL Counties 1900-1990

Church Records

Court Records

1841-1911 Circuit Court Record - IRAD-ISU

1854-1878 Circuit Court Dockets - IRAD-ISU

1859-1878 Circuit Court Default Judgement Record - IRAD-ISU

Ethnic Research

African American

The following have information concerning African American research.

Land and Property

1841-1918 Deed Index -IRAD-ISU

1840-1931 Deed Records -IRAD-ISU

18861-1874 Chattel Mortgage Records -IRAD-ISU

1865-1891 Mortgage Record - IRAD-ISU

Available at the Family History Library

1835-1854 Book of Taxable Lands and Patentees. Illinois Auditor's Office. FHL Collection Item 3

1841-1954 Deeds. Piatt County (Illinois) Recorder. FHL film 987233 first film of 46 microfilm. indexes included.

1859-1942 Sheriff's Certificate Sale record and Sheriff's deed record, 1868-1912. FHL film 988092


Military Records

  • War of 1812

Military Land Grants in Piatt County Illinois for Soldiers of the War of 1812 - USGenWeg

  • Civil War
    Civil War service men from Piatt County served in various regiments. Men often joined a company (within a regiment) that originated in their county. Listed below are companies or regiments that were formed from men of Piatt County.
- 73rd Regiment, Illinois Infantry, Company D.

1860-1864 Enlisted Men in the Civil War. Piatt County Clerk. FHL film 988102 Items 2-8

1861 Soldiers' Enlistment. Piatt County Recorder FHL 988102 Item 1

Civil War Discharges, Piat County Historical and Genealogical Society. FHL book 977.3673 M2ci

Civil War Veterans, Piatt County: an Information guide. By Dorothy Dowdle.FHL book 977.3673 M2c

1865-1920 Soldiers' Discharges. Piatt County Recorder. Includes index. FHL film 988102 Item 9


1858-1872 Naturalization Record, Circuit Court -IRAD-ISU

1864-1880 Naturalization Record Final, Circuit Court - IRAD-ISU

1864-1880 Naturalization Record Final, County Court - IRAD-ISU

1864-1888 Naturalization Record of Soldiers and Minors, Couty Court -IRAD-ISU

1870-1880 Naturalization Record of Minors, Circuit Court - IRAD-ISU

1888-1901 Naturaliation of Minors, County Court -IRAD-ISU

Naturalization Records availiable at the Family History Library

1858-1884 Naturalization Records. Circuit Court. FHL film 988112

1862-1906 Naturalization Records, Circuit Court. FHL film 988112 Items 2-4 and Item 6


Piatt County Republican and Piatt Independent. FHL film 225799 First film of 24.


Almshouse Register FHL film 1598490 item 11 and FHL book: 977.3673 P3w

Probate Records

1843-1901 Probate Record - IRAD-ISU

1850-1961 Probate Will Record - IRAD-ISY

1859-1915 Probate Guardian's Record - IRAD-ISU

1861-1869 Probate Inventory, Appraisement and Sale Record - IRAD-ISU

1869-1905 Probate Inventory Record - IRAD-ISU

Probate Records Availiable at the Family History Library

1843-1887 Probate Record. Piatt County Court FHL film 988103 first film of 7

1850-1918 Will Record. Piatt County Court. FHL films 988110 and 988111

Online Probate Records - at FamilySearch

1850-1918 Illinois Probate Records


County Courthouse

County records are most often kept at the County Courthouse or another local repository. For further information about where the records for Piatt County are kept, see the Piatt County Courthouse page.

Family History Library

Archives and Libraries

Illinois Regional Archives Depository (IRAD)

Illinois State Universtiy (ISU)
2016 Warehouse Road Campus
Box 1520
Normal, Illinois 61802
Phone: 309-452-6027

Illinois Regional Archives Depository System - Local Governmental Records Listings Arranged by County

Public Libraries

Social Groups Online



1835-1854 Taxable Lands Lists - IRAD-ISU

Vital Records


1863-1936 Birth Certificates, Delayed IRAD-ISU

1877-1916 Birth Record IRAD -ISU

1877-1974 Birth Record Index IRAD-ISU

Available at the Family History Library

1877-1931 Birth Records. Piatt Cunty Clerk. FHL 988094-988095 Includes index.  Book: 977.3673 V22i


Available at the Family History Library

1841-1971 Marriage Register Piatt County Clerk FHL 988101

1878-1938 Marriage Records. Piatt County Clerk. FHL film 988100

1841-1874 Piatt County Marriage Records. by Betty Varner and Linda Redmond.FHL fiche 6088847 FHL Book 977.3 A1 no. 236


1877-1915 Death Records. Piatt County County Clerk. FHL film 988098 and 988099 Includes index.

Piatt County, Illinois Marriage and Cemetery records, 1841-1853. at Ancestry

Places / Localities

Populated Places

Neighboring Counties

Web Sites

Databases Pertinent to Piatt County
Local Governmental Records Database
Name Index to Illinois Local Governments
Illinois Statewide Marriage Index
Illinois Statewide Death Index, 1916–1950
Illinois Public Domain Land Tract Sales Database
Federal Township Plats of Illinois


  1. Piatt County, Illinois, www.wikipedia.org
  2. The Handybook for Genealogists: United States of America,10th ed. (Draper, UT:Everton Publishers, 2002).