Washington County's 2026 population is estimated at 21,398, reflecting a 0.34% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Washington County is the 16th largest county in Nebraska. The 2010 population was 19,921 and has grown 7.41% since 2010.
Data after 2023 is projected based on recent change
Overall: 42.9 years
Female: 44 years
Male: 41.7 years
There are 16,042 adults, (4,047 of whom are seniors) in Washington County.
Female: 10,553 (50%)
Male: 10,553 (50%)
The racial composition of Washington County includes 93.88% White, and smaller percentages for other race, Black or African American, Native American, Asian and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 19,814 | 93.88% |
| Two or more races | 1,010 | 4.79% |
| Other race | 130 | 0.62% |
| Black or African American | 56 | 0.27% |
| Native American | 51 | 0.24% |
| Asian | 45 | 0.21% |
Washington County 's average per capita income is $65,170. Household income levels show a median of $94,396. The poverty rate stands at 6.4%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $131,125 | - |
| Families | $122,695 | $138,515 |
| Households | $94,396 | $117,199 |
| Non Families | $45,644 | $66,212 |
Average Income
Median Household Income
Poverty Rate
