1825 - 1847: Gilead
1847: Hamburg (Temporary)
1847: Hardin (Present)
Present, Parts or Formerly included in:
1821 - 1825: Pike
1812 - 1821: Madison
1795 - 1812: St. Clair
TOWNS AND CITIES
Illinois Genealogy Trails
Volunteers working to put free historical data online
This county website is available for adoption!
If interested in joining Genealogy Trails, view our Volunteer Information page.
We gratefully accept contributions of raw data such as
census information, marriage/birth/death records, obituaries,
county histories, biographies, old newspaper items
anything that would help someone build their family tree!!
Feel free to Email
Us with your data contributions - every little bit helps.
We regret that we are unable to do personal research for you.
If you need help starting with your Illinois research, please
visit our Research Page
January 10, 1825
Named for John C. Calhoun, a lawyer and statesman, Representive in
Congress and United States Senator from South Carolina, Secretary of War under Monroe, Vice-President of the United
States, and Secretary of State under Tyler, and was recognized as the "Father of Nullification"
Calhoun County is located on a peninsula between the Mississippi and Illinois Rivers.
The county seat is Hardin. Ferries are the major mode of transportation, and the county features many historic
sites and nature areas, including the Center for American Archaeology, the Two Rivers National Wildlife Refuge,
and the Mississippi River State Fish and Wildlife Area.
Subscribe to the
Illinois Genealogy Trails Mailing List
to be notified of updates to this website and our other county websites.