Washington County's 2026 population is estimated at 4,595, reflecting a -1.88% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Washington County is the 53rd largest county in Colorado. The 2010 population was 4,808 and has grown -4.43% since 2010.
Data after 2023 is projected based on recent change
Overall: 41.3 years
Female: 43.1 years
Male: 39.4 years
There are 3,760 adults, (1,086 of whom are seniors) in Washington County.
Female: 2,319 (48%)
Male: 2,512 (52%)
The racial composition of Washington County includes 86.96% White, 3.83% other race, and smaller percentages for Black or African American, Native American, Asian and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 4,201 | 86.96% |
| Two or more races | 331 | 6.85% |
| Other race | 185 | 3.83% |
| Black or African American | 57 | 1.18% |
| Native American | 30 | 0.62% |
| Asian | 27 | 0.56% |
Washington County 's average per capita income is $46,377. Household income levels show a median of $67,167. The poverty rate stands at 8.08%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $92,500 | - |
| Families | $88,500 | $103,390 |
| Households | $67,167 | $83,675 |
| Non Families | $40,682 | $49,146 |
Average Income
Median Household Income
Poverty Rate
