Calhoun County, Illinois

Calhoun County
Calhoun County Courthouse in Hardin
Map of Illinois highlighting Calhoun County
Location within the U.S. state of Illinois
Map of the United States highlighting Illinois
Illinois's location within the U.S.
Coordinates: 39°10′N 90°40′W / 39.16°N 90.67°W / 39.16; -90.67
Country United States
State Illinois
Founded1825
Named forJohn C. Calhoun
SeatHardin
Largest villageHardin
Area
 • Total284 sq mi (740 km2)
 • Land254 sq mi (660 km2)
 • Water30 sq mi (80 km2)  10.5%
Population
 (2020)
 • Total4,437
 • Density16/sq mi (6.0/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district15th

Calhoun County is a county in the U.S. state of Illinois. As of the 2020 census, the population was 4,437,[1] making it Illinois’ third-least populous county. Its county seat and biggest community is Hardin, with a population of 801.[2] 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.[3]

Calhoun County is part of the Metro-East portion of the St. Louis, MO-IL Metropolitan Statistical Area.

  1. ^ "Calhoun County, Illinois". United States Census Bureau. Archived from the original on October 5, 2024. Retrieved June 8, 2023.
  2. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
  3. ^ "Visitors Guide to Calhoun County". greatriverroad.com. Archived from the original on July 7, 2012. Retrieved August 11, 2012.