Genealogical Resources Illinois State Library

The Illinois State Library has many resources of interest to genealogists, including county histories and historical county atlases. Below is a selected list of significant resources available at the State Library for genealogical research.

Although the library staff cannot respond to research requests from individuals for genealogical assistance and research, most materials in the circulating collection are available for interlibrary loan to local libraries nationwide.

Genealogists are also welcome to visit the library to conduct research in these materials independently during normal library hours, Mon.-Fri., 8 a.m. to 4:30 p.m. (except state holidays).

Census Records

Military Records

County Histories and Atlases

The State Library has well over 500 different Illinois counties histories and over 300 historical county atlases, with an additional 800 plat books representative of the 102 counties. Due to condition and scarcity, some of these titles are not available for loan. County and Regional Histories and Atlases of the Old Northwest are also available.

Geography and History

Additional Genealogy Resources in Springfield