Washington County, Pennsylvania Demographics 2026

Population Overview

Washington County is located in Pennsylvania with a total population of 209,778. It is the 18th most populous county out of 67 in Pennsylvania. The county encompasses 32 Census-designated places.

Age Demographics

The median age in Washington County is 44.2 years. This is 8% higher than the state median of 40.9 years.

Economy, Income & Housing

The median household income in Washington County is $77,487. This is 2% higher than the state median of $76,081. Compared to the national median of $78,538, household income here is 1% lower. The poverty rate stands at 9.4%. This is 21% lower than the state poverty rate of 11.8%. The unemployment rate is 4.9%. This is 6% lower than the state rate of 5.3%. The median home value is $220,600. Housing costs are 8% lower than the state median of $240,500. With a home-value-to-income ratio of just 2.8x, Washington County is one of the most affordable housing markets in the area. 76.4% of occupied housing units are owner-occupied. This homeownership rate is 10% higher than the state average of 69.3%.

Race & Ethnicity

Washington County has a predominantly White (non-Hispanic) population, comprising 90.1% of all residents. Black or African American residents account for 3.1%. The Black or African American population (3.1%) is well below the state average of 10.3%. The Hispanic or Latino population (2.0%) is well below the state average of 8.4%. The Asian population (1.2%) is well below the state average of 3.7%.

Education

32.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 5% lower than the state rate of 34.5%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 94.0%.