Iroquois County, Illinois GenealogyEdit This Page

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Iroquois County, Illinois
Boundary map of Iroquois County, Illinois
Map of the U.S. highlighting Illinois
Location of Illinois in the U.S.
Founded: February 26, 1833
County Seat Watseka
Iroquois County Courthouse.gif
Photo courtesy Illinois Regional Archives Depository, Illinois State Archives
Address Iroquois County Courthouse
1001 E. Grant Street
Watseka, Illinois 60970
Iroquois County Website
   United States Gotoarrow.png Illinois Gotoarrow.png Iroquois County


County Organization

Iroquois County's civil records start the following years:

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

Historical Facts

Iroquois Indiana Basket Seller.jpg

Name taken from the former Iroquois Confederacy of the Six Nations which included the Mohawk, Oneida, Seneca, Onondaga, Cayuga, and Tuscarora.

Parent County

1833--Iroquois County was created 26 February 1833 from Vermilion County. County seat: Watseka [1]

Boundary Changes

1826-1833 Vermillion
1823-1826 Edgar
1819-1823 Clark
1816-1819 Crawford
1815-1816 Edwards
1812-1815 Madison
1801-1812 St. Clair
1795-1801 Knox, Northwest Territory

See an interactive map of Iroquois County boundary changes.

Record Loss

  • Marriage records in Iroquois County before October 1866 were destroyed by a courthouse fire. Marriages before October 1866 were entered from the Iroquois Journal and St. John the Baptist Catholic Church records. (source: Illinois Statewide Marriage Index)

Places / Localities

Populated Places

Ashkum, Beaverville, Budkley, Cissna Park,Clifton, Milford, Onarga, Sheldon, and Watseka

Neighboring Counties

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.  %±
1840 1,695
1850 4,149 144.8%
1860 12,325 197.1%
1870 25,782 109.2%
1880 35,451 37.5%
1890 35,167 −0.8%
1900 38,014 8.1%
1910 35,543 −6.5%
1920 34,841 −2.0%
1930 32,913 −5.5%
1940 32,496 −1.3%
1950 32,348 −0.5%
1960 33,562 3.8%
1970 33,532 −0.1%
1980 32,976 −1.7%
1990 30,787 −6.6%
2000 31,334 1.8%
2010 29,718 −5.2%
Source: "American FactFinder". United States Census Bureau.

1840 Pensioners

  • A Census of Pensioners for Revolutionary or Military Services: With their Names, Ages, and Places of Residence, as Returned by the Marshalls of the Several Judicial Districts, Under the Act for Taking the Sixth Census. Washington, D.C., 1841. FHL 973 X2pc 1840; FHL 2321; digital version at Google Books. [See Illinois, Iroquois County on page 187.]

Church Records

1851-1878, 1878-1889 (Marriage Book B) Catholic Church. St. John the Baptist. Marriage Records. FHL film 2055157 item 15 and Fiche 6004547.

Quaker Records includes Onarga and Watseka Monthly Meetins ( Source: Ancestry)

St. Mary's Catholic Church Records 1859-1882. by Nancy Tabo Scott  WorldCat

St. John the Baptist Catholic Church Records 1879-1944. by Nora Meier  WorldCat

St. Peter Catholic Church Records 1869-1919. by Norma Meier  WorldCat

Milford Christian Church Records. by Dauthers of American Revolution  WorldCat

Court Records

Ethnic Research

African American

The following have information concerning African American research.



Land and Property

IRAD - Illinois State University (Following records originally from Office: Recorder.(IRAD - County Listing)

Chattal Morgages 1930-1968. IRAD - ISU book.

Family History Library Collection

1835-1887 Land Records. County Court Iroquois County, Illinois. filmed by Genealogical Society of Utah, 1983. 60 microfilms. FHL film 1321552 first film.
1831-1882 Iroquois County Original Land Purchases,: a research project of the Iroquois County Historical Society. by Ralph D. Moore and Virginia M. Moore. FHL film 1036641 item 2 and Book 977.364R2m.


Military Records

Revolutionary War

Veteran Burials  (Genealogy Trails History Group)

War of 1812

Military Land Grants Iroquois County Illinois for Soldiers of the War of 1812.  - USGenWeb

Civil War

Civil War service men from Iroquois 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 Iroquois County.

- 10th Illinois Cavalry Regiment, Company C
- 25th Regiment, Illinois Infantry. Company F
- 51st Regiment, Illinois Infantry, Company C.
- 76th Regiment, Illinois Infantry, Company A, Company E, and Company K.

Grand Army of the Republic

A list of GAR post in Illinois additionsl site for post list Library of Congress

Williams Post no. 25 of Watseka. Personal War Sketches of the Members of Williams Post. FHL film 1321667 Item 2.

B. Brown Post, Sheldon 1913  - USGenWeb

Gilman Post, Gilman 1913  - USGenWeb

Kirkpatrick Post, Loada 1913  - USGenWeb

Williams Post, Watseka 1913  - USGenWeb

World War I

World War I Draft Registraion Cards, 1917-1918  (Source: Ancestry)

World War II

World War II Casualties, Army and Army Air Corps  (Source: AccessGenealogy)


IRAD -Illinois State University (Following records originally from Office: County Court). IRAD Counties Listing

1876-1903 Naturalization Dockets - IRAD-ISU  microfilm.

Family History Library Collection

1859-1906 Naturalization Records. Illinois, County Court (Iroquois County) FHL film 1321549-1321551 Each volume includes an index.

1867-1931 Index of Petitons for Naturalizations Iroquois Coutny, Illinois (Iroquois County Genealogical Society)

Naturalized Citizens no dates given (Iroquois County Genealogical Society)


Chronicling America        (Source: Library of Congress)

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

Family History Center

Find a FamilySearch Center

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 -Illinois State University Region 

Public Libraries

Social Groups Online


Miscellaneous Records, Iroquois County, Illinois by Iroquois County Genealogical Society and Cheryl Wixon Gocken. 3 Volumes. FHL Digital version:  Vol. 1 ,  Vol. 2  , and Vol 3.


1890 Tax List FHL fiche 6004546 and book 977.364 R4i

Vital Records

Iroquois County Vital Records Office

1001 E. Grant St.

Watseka, IL 60970


Order Birth and Death Certificates Online

IRAD- Illinois State University (Following records originally from Offive: County Clerk).IRAD County Listing

Birth Records

1869-1915 Birth Records Index. IRAD-ISU microfilm.
1878-1901 Birth Records. IRAD-ISU microfilm.
1853-1962 Delayed Birth Certificats Index. IRAD-ISU microfilm.
1853-1915 Delayed Birth Certificates. IRAD-ISU microfilm.
1872-1900 Delayed Birth Record. IRAD-ISU microfilm.
1878-1900 Birth Records; and 1853-1915 Delayed Birth Records,FHL films 1321541 - 1321547 are available through the Family History Library and its centers.


1866-1935 Marriage Record Index. IRAD-ISU microfilm.
1866-1904 Marriage Record. IRAD-ISU microfilm.

The above Marriage Records Index and Marriage Record are available through the Family History Library and its centers.FHL film 1321547-1321549

Iroquois County Marriages. by Iroquois County Genealogical Soiceity WorldCat


1877-1901 Death Record. IRAD-ISU microfilm. Also available through the Family history Library and its Centers FHL film 1321549 Item 2
1902-1948 Death Records of Iroquois County, Illinois FHL film and book 977.364 V2g.

Family History Library Collection
1878-1900 Birth Records; and 1853-1915 Delayed Birth Records,  FHL films 1321541 - 1321547
1902-1948 Death Records of Iroquois County, Illinois FHL film and book 977.364 V2g.

Voter Registration

Places / Localities

Web Sites

Databases Pertinent to Iroquois County

Local Governmental Records Database

Names Index to Illinois Local Governments

Illinois Statewide Marriage Index

Illinois Statewide Death index, 1916-1950

Illinois Public Domain Land Tract Sales Data Base

Federal Township Plats of Illinois.


  1. The Handybook for Genealogists: United States of America, 10th ed. (Draper, UT: Everton Publishers, 2002), 194. (FHL Collection Ref Book 973 D27e 2002). WorldCat entry.


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