Kearny County's 2026 population is estimated at 3,818, reflecting a 0.13% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Kearny County is the 73rd largest county in Kansas. The 2010 population was 4,001 and has grown -4.57% since 2010.
Data after 2023 is projected based on recent change
Overall: 37.1 years
Female: 38.6 years
Male: 34 years
There are 2,765 adults, (703 of whom are seniors) in Kearny County.
Female: 1,968 (50.9%)
Male: 1,896 (49.1%)
The racial composition of Kearny County includes 65.73% White, 14.7% other race, 3.62% Asian, and smaller percentages for Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 2,540 | 65.73% |
| Two or more races | 601 | 15.55% |
| Other race | 568 | 14.7% |
| Asian | 140 | 3.62% |
| Native American | 15 | 0.39% |
Kearny County 's average per capita income is $49,432. Household income levels show a median of $89,135. The poverty rate stands at 4.51%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $103,378 | - |
| Families | $90,714 | $98,702 |
| Households | $89,135 | $94,949 |
| Non Families | $50,563 | $63,771 |
Average Income
Median Household Income
Poverty Rate
