There are 55 zip codes in Washington County, Pennsylvania. The most populated is 15301, located in Washington. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
1530150,183Washington
1531743,435Canonsburg
1505717,440Mc Donald
1506310,543Monongahela
1502210,248Charleroi
153679,500Venetia
153328,604Finleyville
150216,699Burgettstown
153305,539Eighty Four
153425,138Houston
150334,622Donora
153123,972Avella
153233,829Claysville
154193,796California
153143,528Bentleyville
150672,285New Eagle
153211,949Cecil
154231,889Coal Center
153601,710Scenery Hill
150191,552Bulger
153331,543Fredericktown
153761,508West Alexander
153291,490Prosperity
153451,343Marianna
153401,293Hickory
150551,146Lawrence
153581,111Richeyville
153111,033Amity
15427918Daisytown
15060906Midway
15477831Roscoe
15324767Cokeburg
15331721Ellsworth
15377669West Finley
15363566Strabane
15350521Muse
15078516Slovan
15366504Van Voorhis
15054447Langeloth
15429444Denbo
15313422Beallsville
15368419Vestaburg
15432366Dunlevy
15004316Atlasburg
15434272Elco
15483253Stockdale
15038248Elrama
15412210Allenport
15365200Taylorstown
15361123Southview
15347102Meadow Lands
1537971West Middletown
1505370Joffre
1534869Millsboro
15378Westland
showing: 55 rows

Zip Codes in Washington County, Pennsylvania by Population (2024)