Washington, Pennsylvania

Washington population, 2020 to 2024

Washington added 192 residents from July 2020 to July 2024, a change of +1.5%. In the latest year it moved by -51. Among 193 Pennsylvania places of 5,000 or more, that growth ranks 46th; the median place changed by +0.2%. The median place of 5,000+ in Pennsylvania has 8,364 people, so Washington is 1.6 times that size.

Washington covers 2.93 square miles of land, for 4,551 people per square mile of land. The median Pennsylvania place of 5,000+ has 3,911, so Washington is denser than the typical town.

What county Washington is in

All of Washington's residents live in Washington County, which had 210,434 residents in 2024. Washington holds 6.3% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Washington

1 ZIP Code Tabulation Area (ZCTA) overlaps Washington by at least 10% of the ZCTA's or the city's land: 15301. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Washington is

The Census internal point of Washington is at 40.174200, -80.246800. Harrisburg, the capital, is 177.5 miles E in a straight line. The nearest larger place is Bethel Park, PA (32,376 people), 15.2 miles away. The nearest city of 100,000 or more is Pittsburgh, PA, 23.2 miles away.

Daylight in Washington

At 40.17° N, Washington gets about 15 h 02 min of daylight around the June solstice and 9 h 19 min around the December solstice, a swing of 5 h 44 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Washington

The eight nearest incorporated places of 1,000+ in Pennsylvania, measured between internal points. The closest is East Washington, 0.8 miles away, with 1,821 people.