Butler County's 2026 population is estimated at 70,198, reflecting a 0.75% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Butler County is the 8th largest county in Kansas. The 2010 population was 65,901 and has grown 6.52% since 2010.
Data after 2023 is projected based on recent change
Overall: 38.4 years
Female: 39.4 years
Male: 37.6 years
There are 51,491 adults, (11,091 of whom are seniors) in Butler County.
Female: 33,601 (49.2%)
Male: 34,686 (50.8%)
The racial composition of Butler County includes 87.31% White, and smaller percentages for other race, Black or African American, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 59,618 | 87.31% |
| Two or more races | 4,212 | 6.17% |
| Other race | 1,472 | 2.16% |
| Black or African American | 1,329 | 1.95% |
| Asian | 1,159 | 1.7% |
| Native American | 415 | 0.61% |
| Native Hawaiian or Pacific Islander | 82 | 0.12% |
Butler County 's average per capita income is $53,415. Household income levels show a median of $81,610. The poverty rate stands at 8.55%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $109,408 | $132,036 |
| Families | $96,617 | $119,906 |
| Households | $81,610 | $102,506 |
| Non Families | $42,905 | $50,863 |
Average Income
Median Household Income
Poverty Rate
