- county
- FIPS 17013
Calhoun County, Illinois
Calhoun County had 4,224 residents in the Census Vintage 2024 estimate, on 253.8 square miles of land. It ranks 100th of 102 in Illinois by population and 94th by land area.
- Population
- 4,224
- #100 of 102 in Illinois · #2,870 in US
- Area
- 253.8 sq mi
- #94 of 102 in Illinois · #2,899 in US
- Density
- 17 / sq mi
- #98 of 102 in Illinois · #2,348 in US
- Median household income
- $72,574
- #30 of 102 in Illinois · #817 in US
Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area
Measure from here
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Calhoun County population, land area and income
Calhoun County had 4,224 residents in the Census Vintage 2024 estimate, on 253.8 square miles of land. It ranks 100th of 102 in Illinois by population and 94th by land area. That works out to 16.6 people per square mile, below the US average of 96.3, and below the national county median.
The median county-equivalent in Illinois has 24,447 residents, so Calhoun County has 17% of the typical county's population.
Its SAIPE 2023 median household income of $72,574 is above the national county median among 3,143 counties with an estimate.
National rank among 3,144
Population
4,224
2870th of 3,144 (US)
Land area
254 sq mi
2899th of 3,144 (US)
Density
16.6 / sq mi
2348th of 3,144 (US)
Median household income
$72,574
817th of 3,143 (US)
Rank within Illinois (102)
Population
4,224
100th of 102 (IL)
Land area
254 sq mi
94th of 102 (IL)
Density
16.6 / sq mi
98th of 102 (IL)
Median household income
$72,574
30th of 102 (IL)
How Calhoun County's population changed since 2020
Calhoun County lost 179 residents between the July 2020 and July 2024 estimates, a drop of 4.1%. That ranks 97th of 102 in Illinois for growth. The median Illinois county changed by -1.7%, and the state as a whole by -0.7%.
Since the April 2020 estimates base, Calhoun County recorded 144 births and 329 deaths, a natural change of -185. Net international migration added +0 and net domestic migration, people moving to or from other US counties, came to -22. The largest single component was natural change, which removed 185 people.
Components of change, April 2020 to July 2024
- Births
- 144
- Deaths
- 329
- Net international migration
- +0
- Net domestic migration
- -22
- Change, July 2023 to July 2024
- -69
Where Calhoun County is
The Census internal point of Calhoun County is at 39.164300, -90.666300. It sits in UTM zone 15N. The map shades Illinois's 102 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Calhoun County outlined. Dots are towns of 1,000+ people with residents in it.
- < -3.0%
- < -2.2%
- < -1.4%
- < -0.3%
- ≥ -0.3%
Orange pin: Calhoun County internal point. Dark pin: Springfield.
Internal point
- Decimal
- 39.164300, -90.666300
- DMS
- 39°09'51.48"N 90°39'58.68"W
- UTM
- 15N 701622.4E 4337603.4N
- Geohash
- 9yzwbcdud
- Plus code
- 86FF587M+PF
Towns in Calhoun County
No incorporated place of 1,000 or more people has residents in Calhoun County. Its 4,224 residents live in smaller towns, census-designated places, or unincorporated land, which the subcounty estimates do not list at this size.
Counties bordering Calhoun County
The Census 2024 county adjacency file lists 6 neighbors for Calhoun County, including 3 across a state line. The most populous is St. Charles County, MO, with 423,726 residents. Distances run between Census internal points in a straight line.
Distance to Springfield and the nearest big city
Springfield is 68.9 miles NE of Calhoun County's internal point in a straight line. The nearest place of 100,000 or more is St. Louis, MO (population 279,695), 43.0 miles away. The nearest place of 10,000 or more is Troy, MO (population 14,963), 21.0 miles away.
Calhoun County FIPS code
The FIPS code of Calhoun County is 17013: state code 17 for Illinois plus county code 013. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $72,574.
Questions people ask
What is the population of Calhoun County, Illinois?
The Census Vintage 2024 estimate for July 1, 2024 is 4,224. That is down 179 people (4.1%) from the July 2020 estimate of 4,403.
What is the FIPS code of Calhoun County?
17013. The first two digits (17) are Illinois; the last three (013) identify the county.
What is the largest town in Calhoun County?
No incorporated place of 1,000 or more people has residents in Calhoun County. Its people live in smaller towns, census-designated places or unincorporated land.
Which counties border Calhoun County?
6 county-equivalents border it in the Census 2024 adjacency file: St. Charles County, MO; Lincoln County, MO; Jersey County, IL; Pike County, MO; Pike County, IL; Greene County, IL.
Sources and data as of
Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.
- 01Census Vintage 2024 county population estimates
- 02Census 2024 Gazetteer, counties
- 03Census SAIPE 2023 state and county estimates
- 04Census Vintage 2024 subcounty population estimates
- 05Census 2024 county adjacency file
- 06Census 2024 cartographic boundary file, counties (1:5,000,000)
How every number is computed: methodology. Spotted a wrong figure? Report an error.