Calhoun County's 2026 population is estimated at 4,086, reflecting a -1.66% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Calhoun County is the 100th largest county in Illinois. The 2010 population was 5,093 and has grown -19.77% since 2010.
Data after 2023 is projected based on recent change
Overall: 48.8 years
Female: 49.7 years
Male: 47.9 years
There are 3,469 adults, (1,101 of whom are seniors) in Calhoun County.
Female: 2,085 (48.2%)
Male: 2,245 (51.8%)
The racial composition of Calhoun County includes 94.36% White, and smaller percentages for Black or African American, other race, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 4,086 | 94.36% |
| Two or more races | 170 | 3.93% |
| Black or African American | 64 | 1.48% |
| Other race | 7 | 0.16% |
| Native American | 3 | 0.07% |
Calhoun County 's average per capita income is $42,298. Household income levels show a median of $93,203. The poverty rate stands at 6.31%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $115,833 | - |
| Families | $107,813 | $119,844 |
| Households | $93,203 | $105,834 |
| Non Families | $45,735 | $62,551 |
Average Income
Median Household Income
Poverty Rate
