Boone County's 2026 population is estimated at 27,053, reflecting a 0.6% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Boone County is the 23rd largest county in Iowa. The 2010 population was 26,271 and has grown 2.98% since 2010.
Data after 2023 is projected based on recent change
Overall: 42.4 years
Female: 43.8 years
Male: 41 years
There are 21,056 adults, (5,324 of whom are seniors) in Boone County.
Female: 12,995 (48.7%)
Male: 13,673 (51.3%)
The racial composition of Boone County includes 94.12% White, and smaller percentages for Black or African American, other race, Asian, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 25,099 | 94.12% |
| Two or more races | 1,029 | 3.86% |
| Black or African American | 307 | 1.15% |
| Other race | 169 | 0.63% |
| Asian | 53 | 0.2% |
| Native American | 11 | 0.04% |
Boone County 's average per capita income is $53,340. Household income levels show a median of $83,531. The poverty rate stands at 6.16%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $116,750 | - |
| Families | $106,449 | $120,925 |
| Households | $83,531 | $99,765 |
| Non Families | $43,180 | $56,626 |
Average Income
Median Household Income
Poverty Rate
