Benton County's 2026 population is estimated at 340,202, reflecting a 2.82% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Benton County is the 2nd largest county in Arkansas. The 2010 population was 222,601 and has grown 52.83% since 2010.
Data after 2023 is projected based on recent change
Overall: 35.9 years
Female: 36.5 years
Male: 35.3 years
There are 226,382 adults, (41,759 of whom are seniors) in Benton County.
Female: 151,304 (49.8%)
Male: 152,328 (50.2%)
The racial composition of Benton County includes 60.4% White, 4.61% Asian, 4.28% other race, and smaller percentages for Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 183,388 | 60.4% |
| Two or more races | 82,069 | 27.03% |
| Asian | 14,007 | 4.61% |
| Other race | 12,998 | 4.28% |
| Black or African American | 5,479 | 1.8% |
| Native American | 3,417 | 1.13% |
| Native Hawaiian or Pacific Islander | 2,274 | 0.75% |
Benton County 's average per capita income is $56,181. Household income levels show a median of $93,506. The poverty rate stands at 7.56%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $119,195 | $157,302 |
| Families | $108,069 | $142,550 |
| Households | $93,506 | $126,066 |
| Non Families | $55,182 | $75,961 |
Average Income
Median Household Income
Poverty Rate