Benton County's estimated 2026 population is 25,859 with a growth rate of 0.12% in the past year according to the most recent United States census data. Benton County is the 25th largest county in Iowa. The 2010 population was 26,049 and has seen a growth of -0.73% since that time.
Data after 2023 is projected based on recent change
The racial composition of Benton County includes 95.28% White, and smaller percentages for Two or more races, other race, Black or African American, Asian, Native American and multiracial populations.
White (95.28%)
Two or more races (2.87%)
Other race (1.14%)
Black or African American (0.4%)
Asian (0.2%)
Native American (0.11%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 24,484 | 95.28% |
| Two or more races | 737 | 2.87% |
| Other race | 293 | 1.14% |
| Black or African American | 104 | 0.4% |
| Asian | 51 | 0.2% |
| Native American | 29 | 0.11% |
Married
Widowed
Divorced
Separated
Never Married
Benton County's average per capita income is $55,295. Household income levels show a median of $84,742. The poverty rate stands at 7.88%.
Name | Median | Mean |
|---|---|---|
| Married Families | $112,776 | - |
| Families | $104,875 | $118,996 |
| Households | $84,742 | $99,622 |
| Non Families | $41,345 | $55,209 |
Average Income
Median Household Income
Poverty Rate
