Calhoun County, Illinois
Calhoun County, Illinois, has 4,300 residents (July 2025 estimate). Its county seat is Hardin. It uses Central Time and covers 254 sq mi (657 km²) of land.
- Resident population, July 2025
- 4,300
- Land area
- 254 sq mi (657 km²)
- County seat or government
- Hardin
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $93,203 ± $10,314
- Median home value
- $190,900 ± $23,818
- Median rent, with utilities
- $583 ± $157
- Homes lived in by their owners
- 88.7% ± 3.8 points
- County type
- County
- Metro or micro area
- St. Louis, MO-IL metro areaOutlying county
- Water area
- 29.7 sq mi (77.1 km²)
- State
- Illinois
- County code (FIPS)
- 17013
- Coordinates (central point)
- 39.164262, -90.666295
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in Calhoun County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Central TimeAmerica/Chicago | UTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
- 620471,548 people
- 623551,026 people
- 62006667 people
- 62013578 people
- 62036574 people
- 62053351 people
- 62045247 people
7 ZIP Code areas overlap Calhoun County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
Precincts in Calhoun County, largest first
- Hardin Precinct1,169 people
- Richwood Precinct1,049 people
- Point Precinct899 people
- Belleview Precinct381 people
- Hamburg Precinct358 people
- Crater Precinct349 people
- Gilead Precinct123 people
- Carlin Precinct2 people
People counts are American Community Survey 2020–2024 5-year estimates. All precincts in Illinois, by county
School districts in Calhoun County, largest first
- Pikeland Community Unit School District 107,183 people
- Calhoun Community Unit School District 402,653 people
- Pleasant Hill Community Unit School District 31,957 people
- Brussels Community Unit School District 421,296 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Hardin, Illinois (village)663 people
- Kampsville, Illinois (village)264 people
- Batchtown, Illinois (village)237 people
- Brussels, Illinois (village)214 people
- Hamburg, Illinois (village)68 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Jersey County, Illinois17 mi east
- Lincoln County, Missouri17 mi southwest
- Greene County, Illinois20 mi northeast
- St. Charles County, Missouri26 mi south
- Pike County, Missouri30 mi northwest
- Pike County, Illinois34 mi north
Before using this answer on a form
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