Washington County's 2026 population is estimated at 274,792, reflecting a 1.59% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Washington County is the 3rd largest county in Arkansas. The 2010 population was 204,021 and has grown 34.69% since 2010.
Data after 2023 is projected based on recent change
Overall: 32.5 years
Female: 33.5 years
Male: 31.8 years
There are 196,461 adults, (31,687 of whom are seniors) in Washington County.
Female: 127,682 (49.7%)
Male: 129,083 (50.3%)
The racial composition of Washington County includes 62.68% White, 5.14% other race, 3.04% Black or African American, and smaller percentages for Native Hawaiian or Pacific Islander, Asian, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 160,940 | 62.68% |
| Two or more races | 58,380 | 22.74% |
| Other race | 13,206 | 5.14% |
| Black or African American | 7,797 | 3.04% |
| Native Hawaiian or Pacific Islander | 7,268 | 2.83% |
| Asian | 6,168 | 2.4% |
| Native American | 3,006 | 1.17% |
Washington County 's average per capita income is $47,324. Household income levels show a median of $70,639. The poverty rate stands at 14.59%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $104,469 | $136,285 |
| Families | $89,940 | $121,035 |
| Households | $70,639 | $98,731 |
| Non Families | $42,248 | $58,067 |
Average Income
Median Household Income
Poverty Rate