Dubuque County, Iowa Genealogy

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Online Records

Dubuque County, Iowa
Map of Iowa highlighting Dubuque County
Location in the state of Iowa
Map of the U.S. highlighting Iowa
Location of Iowa in the U.S.
Founded October 1, 1834
County Seat Dubuque
Address Dubuque County Courthouse
720 Central Avenue
Dubuque, IA 52001
Phone:(319) 589-4418
Dubuque County Website

County Courthouse

Dubuque County Courthouse
720 Central Avenue
Dubuque, IA 52001

(319) 589-4418

Dubuque County


Parent County

1834--Dubuque County was created 1 October 1834 from Michigan Territory. County seat:  Dubuque [1]

Boundary Changes

Record Loss


Populated Places

Neighboring Counties

Clayton | Delaware | Jackson | Jones | Jo Daviess County, Illinois | Grant County, Wisconsin




Iowa recorded not only the federal census but state census through out the years too. The state census contains very valuable genealogical information. Where the census information can be found, what years it was taken, mortality schedules, census substitutions and much more is discussed in the very informative Iowa Census article.

  • 1836 State Transcription and Index
  • 1840
  • 1841 State Transcription and Index
  • 1842 State Transcription and Index
  • 1844 State Transcription and Index
  • 1846 State Transcription and Index
  • 1847 State Transcription and Index
  • 1849 State Transcription and Index
  • 1850
  • 1854 State Originals
  • 1856 State Originals
  • 1860
  • 1870
  • 1880
  • 1885 State Originals
  • 1890
  • 1895 State Originals
  • 1900
  • 1905 State Originals and Index
  • 1910
  • 1915 State Originals
  • 1920
  • 1925 State Originals
  • 1930




Local Histories




Index to Naturalization Petitions for Illinois, Indiana, Iowa & Wisconsin

Naturalization and citizenship (microfilmed originals or published transcripts) are listed in the FamilySearch Library Catalog for Dubuque County, Iowa Genealogy. For other libraries (local and national) or to gain access to items of interest, see  Some of the microfilms may be available at the state archives or at state and county historical societies.


Wikipedia has more about this subject: List of online newspaper archives

NewspaperArchive.com ($) has a large collection of digitized Iowa newspapers online. This database is sometimes free at libraries.



Vital Records

Societies and Libraries

Family History Centers

Web Sites

Sources and Footnotes

  1. The Handybook for Genealogists: United States of America,10th ed. (Draper, UT:Everton Publishers, 2002).