Calhoun County, Illinois Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 100th-largest in Illinois
The population of Calhoun County, Illinois is 4,406 as of the 2023 American Community Survey, making it the 100th-largest county in Illinois. The median household income is $92,095, the median home value is $174,000, and the median age is 48.5.
The population of Calhoun County has declined 17.1% since 2010 (5,093 → 4,224), a -1.33% annualized rate.
4,406
Population
-1.33%
Annual growth
17
People / sq mi
$92,095
Median Income
$174,000
Median Home Value
Calhoun County covers 254 sq mi of land at 17.4 people per square mile.
About Calhoun County, IL
Homeownership is the standout figure in Calhoun County: 89.1% of homes are owner-occupied, higher than the national rate. Calhoun County is a county in Illinois with a population of 4,406.
Earnings sit at the high end: a median household income of $92,095, above the US median of $78,538. Poverty is relatively low for US counties at 5.4%, below the national 12.4%. The typical home is valued at $174,000, with typical rent around $479.
Roughly 18.4% of adults have a bachelor’s, below the national 35.0%. An unusually large 16.8% of workers are remote, above the national 14.0%, and the average commute runs about 49 minutes each way.
The ownership rate anchors the housing story in Calhoun County, and tends to move with the age structure and home-value figures above.
Calhoun County Population History (2010-2024)
The county of Calhoun County had a population of 5,093 in 2010 and 4,224 in 2024, a -17.1% growth over 14 years. The peak was 5,093 in 2010. Average annual growth rate: -1.31%.
4,224
Population (2024)
5,093
Population (2010)
5,093
Peak (2010)
-1.31%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 5,093 |
| 2011 | 5,047 |
| 2012 | 4,983 |
| 2013 | 5,006 |
| 2014 | 4,923 |
| 2015 | 4,858 |
| 2016 | 4,872 |
| 2017 | 4,847 |
| 2018 | 4,834 |
| 2019 | 4,740 |
| 2020 | 4,403 |
| 2021 | 4,392 |
| 2022 | 4,335 |
| 2023 | 4,293 |
| 2024 | 4,224 |
Race & Ethnicity
| White | 94.9% |
| Black or African American | 1.0% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.6% |
| Two or More Races | 0.0% |
Age & Sex
48.5
Median Age
48.4%
Female
51.6%
Male
24.6%
Age 65+
Age Distribution
Children (under 15): 16.5% · Seniors (65+): 24.6%
Income & Poverty
| Median household income | $92,095+$10,393 vs state |
| Mean household income | $105,411 |
| Per-capita income | $33,749 |
| Poverty rate | 5.4%-2.8% vs state |
| Unemployment rate | 2.0% |
| Employment-to-population | 51.3% |
Top Industries by Employment
The largest employment sector in Calhoun County is professional & business services, accounting for 28.8% of workers.
How residents commute
0.0%
Drive alone
0.1%
Carpool
75.6%
Public transit
16.8%
Work from home
49.4 min
Avg commute
Housing
$174,000$-76,500 vs state
Median home value
$479
Median rent
89.1%
Homeownership rate
2,298
Total housing units
53.2%
Occupied
46.8%
Vacant
10.9%
Renter-occupied
Social & access
98.7%
With health insurance
88.5%
With broadband internet
19.9%
Foreign-born
10.1%
Veterans (18+)
18.8%
With a disability
99.3%
Speak language other than English at home
Education
93.4%
High School+
18.4%
Bachelor's+
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Frequently Asked Questions
Calhoun County, Illinois has a population of 4,406 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 100th-largest county in Illinois. Population density is 17 people per square mile.
The population of Calhoun County has declined 17.1% since 2010 (5,093 → 4,224), a -1.33% annualized rate.
The median household income in Calhoun County, Illinois is $92,095, with mean (average) household income of $105,411 and per-capita income of $33,749. 5.4% of residents live below the federal poverty level.
In Calhoun County, the largest racial and ethnic groups are White (94.9%), Black or African American (1.0%), Hispanic or Latino (0.6%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Calhoun County, Illinois is 48.5 years. Residents are 48.4% female and 51.6% male.
The median home value in Calhoun County is $174,000 and median monthly rent is $479. 89.1% of occupied housing units are owner-occupied. The county has 2,298 total housing units, 46.8% of which are vacant.
The largest employment sector in Calhoun County, Illinois is professional, scientific, and management services, employing 28.8% of workers. The unemployment rate is 2.0%.
Chicago is among the largest cities associated with Calhoun County, Illinois, with a population of 2,707,648.
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Population, race, income, age, and trends across Illinois
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.