Welcome to St. Clair County, located in Southwestern Illinois across the Mississippi River from St. Louis. Established in 1790, it is Illinois’ oldest county.

• Databases are under the COLLECTIONS menu. Read about our newest Member Benefits, birth certificate indexes 1878–1920  Please consider joining SCCGS to support its endeavors, or Donate.
• Cemetery and church records are our specialty. Description and purchase options.
• Booker T. Washington Cemetery Burials, Book One, (September 2023), and the Quarterly  combined Surname and Article Title Tool (1978–2022)    

We gratefully acknowledge the efforts of SCCGS volunteers who preserve and publish extensive information about our ancestors’ sojourn here. Meet us at free lectures and events.

SEARCH across the entire site for your ancestors, whether rooted in the county’s early 18th century French settlements; Americans who migrated from the east coast and southern States, German, Irish and English immigrants who arrived 1830-1860s, or eastern European settlers who found new homes here at the dawn of the 20th century.