Richland County's 2026 population is estimated at 15,082, reflecting a -0.92% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Richland County is the 69th largest county in Illinois. The 2010 population was 16,193 and has grown -6.86% since 2010.
Data after 2023 is projected based on recent change
Overall: 42.3 years
Female: 43.1 years
Male: 41.9 years
There are 12,014 adults, (3,234 of whom are seniors) in Richland County.
Female: 7,857 (50.4%)
Male: 7,741 (49.6%)
The racial composition of Richland County includes 93.79% White, and smaller percentages for other race, Asian, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 14,630 | 93.79% |
| Two or more races | 570 | 3.65% |
| Other race | 234 | 1.5% |
| Asian | 85 | 0.54% |
| Black or African American | 68 | 0.44% |
| Native American | 9 | 0.06% |
| Native Hawaiian or Pacific Islander | 2 | 0.01% |
Richland County 's average per capita income is $43,840. Household income levels show a median of $62,455. The poverty rate stands at 12.08%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $93,333 | - |
| Families | $80,014 | $96,562 |
| Households | $62,455 | $77,417 |
| Non Families | $33,318 | $45,617 |
Average Income
Median Household Income
Poverty Rate
