There are 56 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.
Zip Code | Population | City |
|---|---|---|
| 15301 | 50,183 | Washington |
| 15317 | 43,435 | Canonsburg |
| 15057 | 17,440 | McDonald |
| 15063 | 10,543 | Monongahela |
| 15022 | 10,248 | Charleroi |
| 15367 | 9,500 | Venetia |
| 15332 | 8,604 | Finleyville |
| 15417 | 7,886 | Brownsville |
| 15021 | 6,699 | Burgettstown |
| 15330 | 5,539 | Eighty Four |
| 15342 | 5,138 | Houston |
| 15033 | 4,622 | Donora |
| 15312 | 3,972 | Avella |
| 15323 | 3,829 | Claysville |
| 15419 | 3,796 | California |
| 15314 | 3,528 | Bentleyville |
| 15067 | 2,285 | New Eagle |
| 15321 | 1,949 | Cecil |
| 15423 | 1,889 | Coal Center |
| 15360 | 1,710 | Scenery Hill |
| 15019 | 1,552 | Bulger |
| 15333 | 1,543 | Fredericktown |
| 15376 | 1,508 | West Alexander |
| 15329 | 1,490 | Prosperity |
| 15345 | 1,343 | Marianna |
| 15340 | 1,293 | Hickory |
| 15055 | 1,146 | Lawrence |
| 15358 | 1,111 | Richeyville |
| 15311 | 1,033 | Amity |
| 15427 | 918 | Daisytown |
| 15060 | 906 | Midway |
| 15477 | 831 | Roscoe |
| 15324 | 767 | Cokeburg |
| 15331 | 721 | Ellsworth |
| 15377 | 669 | West Finley |
| 15363 | 566 | Strabane |
| 15350 | 521 | Muse |
| 15078 | 516 | Slovan |
| 15366 | 504 | Van Voorhis |
| 15054 | 447 | Langeloth |
| 15429 | 444 | Denbo |
| 15313 | 422 | Beallsville |
| 15368 | 419 | Vestaburg |
| 15432 | 366 | Dunlevy |
| 15004 | 316 | Atlasburg |
| 15434 | 272 | Elco |
| 15483 | 253 | Stockdale |
| 15038 | 248 | Elrama |
| 15412 | 210 | Allenport |
| 15365 | 200 | Taylorstown |
| 15361 | 123 | Southview |
| 15347 | 102 | Meadow Lands |
| 15379 | 71 | West Middletown |
| 15053 | 70 | Joffre |
| 15348 | 69 | Millsboro |
| 15378 | 0 | Westland |