Kendall County, Illinois Genealogy

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Kendall County, Illinois
Boundary map of Kendall County, Illinois
Map of the U.S. highlighting Illinois
Location of Illinois in the U.S.
Founded: February 19, 1841
County Seat Yorkville
Kendall County Courthouse.gif
Photo courtesy Illinois Regional Archives Depository, Illinois State Archives
Address Kendall County Courthouse
111 W. Fox Street
Yorkville, IL 60560
Kendall County Website


Template:Illinois-stub United States Gotoarrow.png Illinois Gotoarrow.png Kendall County

County Organization

Kendall County's civil records start the following years:

                                     Beginning Dates for Kendall 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 Kendall County are kept, see the Kendall County Courthouse page.

Historical Facts

Amos kendall.jpg

Kendall County is named for Amos Kendall who was a journalist and statesman and served as U.S. Postmaster General under Andrew Jackson and Martin Van Buren.

Boundary Changes

Prior to County Formation

County Formation and After

  • 1841 - Kendall County created from LaSalle and Kane counties

For more information see Origin and Evolution of Illinois Counties or Kendall County Fact Sheet (Illinois State Archives). For interactive county boundary maps see Illinois County Boundaries, 1790-Present, Illinois Historical Counties, or Illinois County Maps and Atlases.

Record Loss

Places / Localities

Populated Places

Neighboring Counties

Records and Resources


  • The Historical Encyclopedia of Illinois has a Kendall County edition. This includes a state history section along with a county history and biographies of Kendall County residents. See the wiki article for links to available copies and indexes.


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.  %±
1850 7,730
1860 13,074 69.1%
1870 12,399 −5.2%
1880 13,083 5.5%
1890 12,106 −7.5%
1900 11,467 −5.3%
1910 10,777 −6.0%
1920 10,074 −6.5%
1930 10,555 4.8%
1940 11,105 5.2%
1950 12,115 9.1%
1960 17,540 44.8%
1970 26,374 50.4%
1980 37,202 41.1%
1990 39,413 5.9%
2000 54,544 38.4%
2010 114,736 110.4%
Source: "American FactFinder". United States Census Bureau.

Church Records

Court Records

Ethnic Research

African American

The following have information concerning African American research.




  • 1800s-Present - Use the Bureau of Land Management (BLM) Land Patent Index to obtain original federal land transfer records including homestead, military warrants, and cash entry patents. These records help a research establish location and lead to National Archives' records which may include genealogical information. Earlier land transfer records are housed at the National Archives.
  • Family Maps of Kendall County, Illinois (2005) plats the land of many nineteenth-century Kendall County residents. The publisher's bookstore includes a free online surname index. FHL Book 977.3263 E7b



Civil War

Civil War service men from Kendall 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 Kendall County.

- 20th Regiment, Illinois Infantry, Company K.
- 36th Regiment, Illinois Infantry, Companies D, E, F, and I.
- 89th Regiment, Illinois Infantry, Company H.
- 91st Regiment, Illinois Infantry, Company E.


Newspapers Obituaries

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 Kendall County are kept, see the Kendall County Courthouse page.

Family History Center

Illinois Regional Archives Depository (IRAD)

The Illinois Regional Archives Depositories (IRAD), managed by the Illinois State Archives, houses the archival records of local Illinois counties, townships, municipalities and school districts. The seven Regional Depositories are housed on state university campuses scattered throughout Illinois.

The Northern Illinois University (IRAD-NIU) holds the records for Kendall County. Learn more about finding and using their records.

Illinois Regional Archives Depository
c/o Regional History Center
Founders Memorial Library, Room 400
Northern Illinois University
DeKalb, IL 60115
Telephone: (815) 753-1807

Public Libraries

Social Groups Online



Vital Records


  • 1877-1903 Birth Records IRAD-NIU; search for Kendall County Records. (Learn more about IRAD.)
  • 1817-1918 Birth Record Index IRAD-NIU; search for Kendall County Records. (Learn more about IRAD.)



Web Sites