Carroll County, Illinois GenealogyEdit This Page

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Coordinates: 42.06°0′N 89.92°0′W / 42.06°N 89.92°W / 42.06; -89.92

Carroll County, Illinois
Map of Illinois highlighting Carroll County
Location in the state of Illinois
Map of the U.S. highlighting Illinois
Location of Illinois in the U.S.
Founded: February 22, 1839
County Seat Mount Carroll
Carroll County Courthouse.gif
Photo courtesy Illinois Regional Archives Depository, Illinois State Archives
Address Carroll County Courthouse
301 North Main St.
Mt. Carroll, Illinois 61053
(815) 244-0221
Carroll County Website

United States Gotoarrow.png IllinoisGotoarrow.png Carroll County


Carroll County Organization

Carroll County's civil records start the following years:

Beginning Dates for Carroll County Records
Birth Marriage Death Census Land Probate
1877 1839 1877 1840 1837 1839

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

Historical Facts

Charles Carroll.JPG
The county is named after Charles Carroll of Carrollton (1737-1832), a signer of the Declaration of Independence.

Boundary Changes

Prior to County Formation

County Formation and After

For more information see Origin and Evolution of Illinois Counties or Carroll 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

Records and Resources



Gotoarrow.png Find A Grave, list of cemeteries. Additional information can be found at local level (city, township, etc.)


For information and tips on accessing census records online, see Illinois Census.


Historical populations
Census Pop.
IL Counties 1900-1990


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, Carroll County on page 186.]

Church History and Records

Court Records


Ethnic Research

African American

The following have information concerning African American research.

Funeral Homes


Mailing Lists

Message Boards


Land and Property


Military History and Records

Civil War

Civil War service men from Carroll 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 Carroll County.

- 34th Regiment, Illinois Infantry, Company I.
- 45th Regiment, Illinois Infantry, Companies A and E.
- 55th Regiment, Illinois Infantry, Company H.
- 61st Regiment, Illinois Infantry, Companies A and B.
- 71st Regiment, Illinois Infantry, Company B.
- 91st Regiment, Illinois Infantry, Company I.
- 92nd Regiment, Illinois Infantry, Companies C and I.

World War I

World War II


The Carroll County Genealogical Society's website includes several naturalization collections:

Newspapers and Obituaries

Probate Records

Gotoarrow.png Illinois Probate Records for description of the records

The Clerk of the Circuit Court has responsibility for the probate records of Carroll County. Carroll County is building a free, searchable database of all Closed Probate Records. (id: probate; password: cccc)


County Courthouse

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







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