Find Illinois county and township maps.
Calhoun County, Illinois
Find your Illinois County by searching for your address, or by clicking on the map.
Calhoun County, Illinois Map
An detailed map of Calhoun County. Click on a nearby County to view more information about that County.
Map of Townships in Calhoun County, Illinois
An interactive map of county subdivisions in Calhoun County. In Illinois, that can include Townships, Precincts, and Villages. Find what township you are in now.
Map of Counties in Illinois
An interactive map of Counties in Illinois. Click on a County to view more information about that County.
About Calhoun County, Illinois
Calhoun County is a county in the U.S. state of Illinois. As of the 2020 census, the population was 4,437, making it Illinois’ third-least populous county. Its county seat and biggest community is Hardin, with a population of 801. Its smallest incorporated community is Hamburg, with a population of 99. Calhoun County is at the tip of the peninsula formed by the courses of the Mississippi and Illinois rivers above their confluence and is almost completely surrounded by water. Calhoun County is sparsely populated; it has just five municipalities, all of them villages.
What is this?
This site has an interactive map of Illinois Counties. Click on the map to find your Illinois county, and view more details. You can also search for your address and use your GPS to find your Illinois County.
Find what County you are in, and see official Illinois County resources and information. Find any county in the United Stated, along with resources and links to official County websites. See a County map and local details. Looking for what county you are currently in? Find out on this map or use your device GPS to see what county you are in.