Seward County's 2026 population is estimated at 21,410, reflecting a 0.31% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Seward County is the 26th largest county in Kansas. The 2010 population was 22,972 and has grown -6.8% since 2010.
Data after 2023 is projected based on recent change
Overall: 31 years
Female: 31.1 years
Male: 30.9 years
There are 14,973 adults, (2,300 of whom are seniors) in Seward County.
Female: 10,211 (47.5%)
Male: 11,275 (52.5%)
The racial composition of Seward County includes 33.83% White, 23.01% other race, 3.33% Black or African American, and smaller percentages for Native American, Asian and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| Two or more races | 7,424 | 34.55% |
| White | 7,269 | 33.83% |
| Other race | 4,943 | 23.01% |
| Black or African American | 716 | 3.33% |
| Native American | 621 | 2.89% |
| Asian | 513 | 2.39% |
Seward County 's average per capita income is $48,831. Household income levels show a median of $63,827. The poverty rate stands at 12.21%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $91,250 | - |
| Families | $78,353 | $94,089 |
| Households | $63,827 | $81,284 |
| Non Families | $44,375 | $51,449 |
Average Income
Median Household Income
Poverty Rate
