Washington County's 2026 population is estimated at 218,359, reflecting a 2.44% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Washington County is the 5th largest county in Utah. The 2010 population was 138,397 and has grown 57.78% since 2010.
Data after 2023 is projected based on recent change
Overall: 39.1 years
Female: 39.9 years
Male: 38.4 years
There are 148,410 adults, (43,803 of whom are seniors) in Washington County.
Female: 98,557 (50.2%)
Male: 97,874 (49.8%)
The racial composition of Washington County includes 84.68% White, 4.71% other race, and smaller percentages for Asian, Native American, Native Hawaiian or Pacific Islander, Black or African American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 166,345 | 84.68% |
| Two or more races | 14,863 | 7.57% |
| Other race | 9,257 | 4.71% |
| Asian | 2,314 | 1.18% |
| Native American | 1,524 | 0.78% |
| Native Hawaiian or Pacific Islander | 1,275 | 0.65% |
| Black or African American | 853 | 0.43% |
Washington County 's average per capita income is $46,150. Household income levels show a median of $80,632. The poverty rate stands at 9.84%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $105,030 | $129,858 |
| Families | $98,356 | $122,633 |
| Households | $80,632 | $107,780 |
| Non Families | $42,427 | $57,474 |
Average Income
Median Household Income
Poverty Rate