Benton County's 2026 population is estimated at 20,722, reflecting a 0.26% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Benton County is the 54th largest county in Missouri. The 2010 population was 19,109 and has grown 8.44% since 2010.
Data after 2023 is projected based on recent change
Overall: 54.5 years
Female: 54.9 years
Male: 54.3 years
There are 16,665 adults, (6,322 of whom are seniors) in Benton County.
Female: 9,889 (49.1%)
Male: 10,262 (50.9%)
The racial composition of Benton County includes 92.02% White, and smaller percentages for Black or African American, other race, Native American, Native Hawaiian or Pacific Islander, Asian and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 18,542 | 92.02% |
| Two or more races | 1,097 | 5.44% |
| Black or African American | 193 | 0.96% |
| Other race | 155 | 0.77% |
| Native American | 86 | 0.43% |
| Native Hawaiian or Pacific Islander | 46 | 0.23% |
| Asian | 32 | 0.16% |
Benton County 's average per capita income is $39,004. Household income levels show a median of $52,567. The poverty rate stands at 19.87%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $74,342 | - |
| Families | $65,266 | $85,818 |
| Households | $52,567 | $70,221 |
| Non Families | $25,310 | $37,912 |
Average Income
Median Household Income
Poverty Rate
