Boone County's 2026 population is estimated at 53,461, reflecting a 0.14% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Boone County is the 27th largest county in Illinois. The 2010 population was 54,094 and has grown -1.17% since 2010.
Data after 2023 is projected based on recent change
Overall: 39.7 years
Female: 40.2 years
Male: 39.2 years
There are 40,580 adults, (8,916 of whom are seniors) in Boone County.
Female: 26,408 (49.6%)
Male: 26,822 (50.4%)
The racial composition of Boone County includes 71.77% White, 12.97% other race, 3.05% Black or African American, and smaller percentages for Asian, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 38,201 | 71.77% |
| Other race | 6,904 | 12.97% |
| Two or more races | 5,797 | 10.89% |
| Black or African American | 1,623 | 3.05% |
| Asian | 511 | 0.96% |
| Native American | 194 | 0.36% |
Boone County 's average per capita income is $50,257. Household income levels show a median of $84,571. The poverty rate stands at 9.93%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $120,418 | $139,033 |
| Families | $98,901 | $121,011 |
| Households | $84,571 | $106,291 |
| Non Families | $43,562 | $57,828 |
Average Income
Median Household Income
Poverty Rate
