Washington County's estimated 2026 population is 210,969 with a growth rate of 0.08% in the past year according to the most recent United States census data. Washington County is the 18th largest county in Pennsylvania. The 2010 population was 207,944 and has seen a growth of 1.45% since that time.
Data after 2023 is projected based on recent change
Overall: 44.2 years
Female: 45.5 years
Male: 42.7 years
There are 168,972 adults, (46,167 of whom are seniors) in Washington County.
Female: 106,148 (50.5%)
Male: 103,894 (49.5%)
The racial composition of Washington County includes 90.08% White, 3.18% Black or African American, and smaller percentages for Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 189,198 | 90.08% |
| Two or more races | 9,698 | 4.62% |
| Black or African American | 6,683 | 3.18% |
| Asian | 2,711 | 1.29% |
| Other race | 1,562 | 0.74% |
| Native American | 178 | 0.08% |
| Native Hawaiian or Pacific Islander | 12 | 0.01% |
Washington County's average per capita income is $54,389. Household income levels show a median of $78,958. The poverty rate stands at 9.61%.
Name | Median | Mean |
|---|---|---|
| Married Families | $119,504 | $145,722 |
| Families | $103,392 | $129,869 |
| Households | $78,958 | $105,512 |
| Non Families | $43,631 | $59,042 |
Average Income
Median Household Income
Poverty Rate