See also links to these research aids: classes, conferences, webinars, and professional services
Government offices holding St. Clair records
St. Clair County Courthouse
10 Public Square
Belleville, IL 62220
|Many records or indexes in these offices are already part of the SCCGS holdings at the Belleville Public Library through the efforts of SCCGS, its volunteers, and donors. The Illinois State Archives (link below) has several indexes online.|
Illinois Regional Archives Depository (IRAD)
c/o – Special Collections – Morris Library – 6632
Southern Illinois University
Carbondale, IL 62901-6632
(618) 453-3040 To top
IRAD is the official depository for St. Clair documents and records released for public use and research.
Free research by interns in historical disciplines. Copies are billed at cost when mailed to you.
At IRAD’s homepage, scroll to the bottom for links to Local Governmental Records Database which displays St. Clair records available (some births, great marriage licenses and certificates, deed indexes, probate case files, jail records). Read exactly what data each record may hold, IRAD contact information, and research policy.
St. Clair County’s pre-statehood (1818) records are preserved at the Illinois State Archives (ISA). The ISA oversees IRAD. The websites, under the direction of the Secretary of State, look very similar and some St. Clair vital records are indexed on the ISA site (read more below).
Illinois State Archives
Springfield, IL 62756
(217) 782-4866 To top
On the ISA site, click the Databases link for St. Clair County
Pre-statehood St. Clair County records and the Perrin Collection are preserved at the ISA. Statewide databases include Illinois Soldiers in various wars, marriage index, death certificates index 1916 – 1950, and 19th Century Illinois Public Domain Land Sales.
Abraham Lincoln Presidential Library
112 North Sixth Street,
Springfield, IL 62701
Reference Desk: 217.524.6358.
Newspaper microfilm interlibrary loan. 217.785.7941.
Illinois State Library
300 South Second St.
Springfield, IL 62701
|Great source for maps on interlibrary loan.|
|NARA National Archives Records Administration||See their Genealogy Page for often used and requested records.|
BLM Bureau of Land Management
|Online Public Domain land purchase database for several states after 1820 (but for Illinois also includes Military Tract purchases from 1817-forward). Dates reflect patent issued date. The Illinois State Archives’ database is more comprehensive.|
|Missouri History Museum
P.O. Box 11940
St. Louis MO 63112-0040
|Search MIssouri History Museum’s Genealogy and Local History Index.
Example: About 1,000 Illinois soldiers died in St. Louis military hospitals and camps 13 October 1861 to 22 May 1865.
St. Clair County based libraries and historical societies
|Belleville Public Library
120 East Washington St.,
Belleville, IL 62220Belleville Historical Society
P.O. Box 23682
Belleville, IL 62223. Great Belleville Photos
|O’Fallon Historical Society
101 West State, O’Fallon, IL 62269.
Custodians of the Progress Obituary Index 1898 – present.O’Fallon Public Library
120 Civic Plaza, O’Fallon, IL 62269
|St. Clair County Historical Society 701 E. Washington St., Belleville, IL 62220
|New Athens District Library
201 N. Van Buren, New Athens, IL 62264
|Cahokia Public Library 140 Cahokia Park Dr., Cahokia, IL 62206 (618) 332-1491||Caseyville Public Library
419 S. Second St., Caseyville, IL 62232
|Collinsville Public Library
408 W. Main, Collinsville, IL 62234
|E. St. Louis Public Library
5300 State St., East Saint Louis, Illinois 62203
(618) 397-0991 – Good black history collection
|Fairview Heights Public Library
10017 Bunkum Rd.,
Fairview Heights, IL 62208
|Freeburg Public Library
407 S. Belleville St., Freeburg, IL 62243
|Marissa Historical and Genealogical Society
P O Box 245
212 North Main Street
Marissa, IL 62257-0245
|Mascoutah Heritage Museum
306 West Main, Mascoutah, IL 62258
Mascoutah Public Library
|Millstadt Public Library
115 W. Laurel
Millstadt, IL 62260
|Millstadt Historical Society, c/o Village Hall,
111 W. Laurel St., Millstadt, Illinois 62260
Regional societies and FamilySearch
ISGS Illinois State Genealogical Society,
**The Illinois State Genealogical Society offers a copy service for death certificates at a reduced fee.
Free federal census and “Illinois, Diocese of Belleville” church registers online at FamilySearch.org. Also see the Catalog for titles available and their plans for digital display of their holdings.
StLGS St. Louis Genealogical Society Just across the Mississippi River. Many St. Clair Countians lived or worked in St. Louis for a time.
|Illinois GenWeb all counties|
|Illinois State Historical Society (ISHS) members have access to all Journal volumes published since 1909. Early volumes may be viewed free online.||Genealogy Trails all counties|
St. Clair County Newspapers, many indexed at the Belleville Public Library
St. Louis Obit Index
St. Marcus United Church of Christ, St. Louis, Missouri Marriages 1847 – 1865 (some St. Clair people in this resource were born in or resided in Illinois)
St. Clair County – Other
The Internet Archive for free St Clair County historical reference books. Try these terms in their search box: Illinois AND st clair AND [a topic, e.g., census, Belleville, or coal]
Evangelical and Reformed/ United Church of Christ repository for some St. Clair church registers.
Association for Gravestone Studies
Political Graveyards in USA. Links include biographies and burial places of politicians nationwide.
St. Clair County Genealogical Society, PO Box 431, Belleville, IL 62222-0431.
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Information may be linked to but not copied. Authorized by SCCGS Board of Directors. Contact Us.