Washington County Demographics

A map of Washington County's Population by Race

Washington County, Pennsylvania had a population of 209,349 in 2020. It was 89.3% White, 3.3% Black, 1.0% Asian, 1.9% Hispanic, 0.4% Native American/Other, and 4.1% Multiracial. This map presents the population of Washington County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Washington County is the 18th most populous county of the 67 counties in Pennsylvania.

Washington County's White Population

186,900 residents of Washington County identify as White, or 89.3%. This makes the White share of the population of Washington County larger than the White share of the population of Pennsylvania (73.5% White). Of the 67 counties in Pennsylvania, Washington County is ranked #34 in terms of White residents as a share of the population.

Washington County is more White than neighboring Ohio County (88.5% White), and Allegheny County (75% White). Washington County is less White than neighboring Greene County (91.5% White), Brooke County (92.2% White), and Hancock County (91% White).

Washington County's Black Population

6,861 residents of Washington County identify as Black, or 3.3%. This makes the Black share of the population of Washington County slightly less than the Black share of the population of Pennsylvania (10.5% Black). Of the 67 counties in Pennsylvania, Washington County is ranked #29 in terms of Black residents as a share of the population.

Washington County is more Black than neighboring Greene County (3% Black), Brooke County (1.6% Black), and Hancock County (2.4% Black). Washington County is less Black than neighboring Ohio County (3.9% Black), and Allegheny County (12.9% Black).

Washington County's Asian Population

1,998 residents of Washington County identify as Asian, or 1.0%. This makes the Asian share of the population of Washington County roughly similar to the Asian share of the population of Pennsylvania (3.9% Asian). Of the 67 counties in Pennsylvania, Washington County is ranked #26 in terms of Asian residents as a share of the population.

Washington County is more Asian than neighboring Greene County (0.3% Asian), Brooke County (0.2% Asian), Ohio County (0.9% Asian), and Hancock County (0.4% Asian). Washington County is less Asian than neighboring Allegheny County (4.7% Asian).

Washington County's Hispanic Population

4,021 residents of Washington County identify as Hispanic, or 1.9%. This makes the Hispanic share of the population of Washington County slightly less than the Hispanic share of the population of Pennsylvania (8.1% Hispanic). Of the 67 counties in Pennsylvania, Washington County is ranked #42 in terms of Hispanic residents as a share of the population.

Washington County is more Hispanic than neighboring Greene County (1.4% Hispanic), Brooke County (1.3% Hispanic), Ohio County (1.5% Hispanic), and Hancock County (1.5% Hispanic). Washington County is less Hispanic than neighboring Allegheny County (2.7% Hispanic).

Washington County's Native American/Other Population

913 residents of Washington County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.4%. This makes the Native American/Other share of the population of Washington County roughly similar to the Native American/Other share of the population of Pennsylvania (0.6% Native American/Other). Of the 67 counties in Pennsylvania, Washington County is ranked #33 in terms of Native American/Other residents as a share of the population.

Washington County is less Native American/Other than neighboring Brooke County (0.5% Native American/Other), Ohio County (0.5% Native American/Other), and Allegheny County (0.6% Native American/Other).

Washington County's Multiracial Population

8,656 residents of Washington County identify as Multiracial, or 4.1%. This makes the Multiracial share of the population of Washington County roughly similar to the Multiracial share of the population of Pennsylvania (3.5% Multiracial). Of the 67 counties in Pennsylvania, Washington County is ranked #7 in terms of Multiracial residents as a share of the population.

Washington County is more Multiracial than neighboring Greene County (3.4% Multiracial), and Allegheny County (4% Multiracial). Washington County is less Multiracial than neighboring Brooke County (4.2% Multiracial), Ohio County (4.6% Multiracial), and Hancock County (4.4% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.