County ZIP codes · Pennsylvania · FIPS 42125
Washington County, PA ZIP Codes
Washington County, Pennsylvania has 63 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 61 residential and 2 for PO boxes or a single organization. 56 of the residential ones lie mainly in Washington County and 5 mainly in a neighboring county; 13 cross the county line. Median household income ranges from $52,352 in 15067 (New Eagle) to $153,936 in 15241 (Pittsburgh) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Washington County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $65,179 and $92,402.
They carry 61 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 61 residential ZIP codes in Washington County
56 ZIP codes lie mainly in Washington County; 5 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 15301 | Washington | 50,348 | 413 | $71k | $207k | 100% |
| 15317 | Canonsburg | 43,871 | 974 | $108k | $355k | 100% |
| 15057 | McDonald | 16,583 | 307 | $121k | $355k | 65% |
| 15063 | Monongahela | 10,525 | 384 | $65k | $156k | 61% |
| 15022 | Charleroi | 9,959 | 540 | $58k | $121k | 100% |
| 15367 | Venetia | 9,906 | 969 | $136k | $544k | 100% |
| 15332 | Finleyville | 7,678 | 288 | $67k | $198k | 87% |
| 15417 | Brownsville | 7,363 | 361 | $55k | $106k | 50% |
| 15021 | Burgettstown | 7,110 | 77 | $75k | $204k | 99% |
| 15330 | Eighty Four | 6,023 | 136 | $112k | $368k | 100% |
| 15342 | Houston | 5,097 | 1,590 | $92k | $247k | 100% |
| 15033 | Donora | 4,572 | 1,924 | $40k | $63k | 100% |
| 15323 | Claysville | 3,860 | 54 | $79k | $194k | 100% |
| 15312 | Avella | 3,603 | 50 | $74k | $215k | 100% |
| 15314 | Bentleyville | 3,545 | 208 | $59k | $166k | 100% |
| 15419 | California | 3,421 | 2,658 | $44k | $126k | 100% |
| 15067 | New Eagle | 2,142 | 1,237 | $52k | $109k | 100% |
| 15321 | Cecil | 2,025 | 1,061 | $118k | $349k | 86% |
| 15333 | Fredericktown | 1,883 | 131 | $89k | $186k | 100% |
| 15423 | Coal Center | 1,846 | 108 | $78k | $186k | 100% |
| 15360 | Scenery Hill | 1,690 | 61 | $85k | $246k | 100% |
| 15345 | Marianna | 1,547 | 73 | $59k | $156k | 96% |
| 15340 | Hickory | 1,524 | 101 | $82k | $291k | 100% |
| 15376 | West Alexander | 1,441 | 38 | $87k | $219k | 100% |
| 15055 | Lawrence | 1,403 | 2,103 | $72k | $232k | 100% |
| 15329 | Prosperity | 1,390 | 32 | $93k | $238k | 72% |
| 15019 | Bulger | 1,056 | 46 | $33k | $158k | 100% |
| 15358 | Richeyville | 1,025 | 1,304 | $104k | $98k | 100% |
| 15331 | Ellsworth | 891 | 1,150 | $59k | $74k | 100% |
| 15060 | Midway | 853 | 1,065 | $56k | $125k | 100% |
| 15311 | Amity | 843 | 36 | $75k | $246k | 100% |
| 15427 | Daisytown | 789 | 86 | $54k | $169k | 100% |
| 15477 | Roscoe | 733 | 3,132 | $73k | $116k | 100% |
| 15078 | Slovan | 714 | 1,210 | $82k | – | 100% |
| 15324 | Cokeburg | 662 | 2,315 | – | $163k | 100% |
| 15377 | West Finley | 614 | 15 | $81k | $229k | 69% |
| 15363 | Strabane | 605 | 2,665 | $63k | $170k | 100% |
| 15429 | Denbo | 551 | 421 | $50k | $75k | 100% |
| 15366 | Van Voorhis | 550 | 1,511 | $42k | – | 100% |
| 15313 | Beallsville | 422 | 217 | $65k | $162k | 100% |
| 15350 | Muse | 373 | 4,605 | $58k | $71k | 100% |
| 15368 | Vestaburg | 353 | 1,848 | – | $64k | 100% |
| 15054 | Langeloth | 352 | 426 | $74k | $143k | 100% |
| 15347 | Meadow Lands | 350 | 734 | $49k | $170k | 100% |
| 15432 | Dunlevy | 326 | 613 | $75k | $98k | 100% |
| 15483 | Stockdale | 291 | 1,128 | $52k | $111k | 100% |
| 15434 | Elco | 280 | 1,600 | $83k | $159k | 100% |
| 15038 | Elrama | 279 | 949 | $32k | $97k | 100% |
| 15004 | Atlasburg | 217 | 1,920 | – | $94k | 100% |
| 15412 | Allenport | 208 | 134 | $41k | $96k | 100% |
| 15365 | Taylorstown | 145 | 185 | $72k | $123k | 100% |
| 15053 | Joffre | 127 | 1,124 | $90k | $203k | 100% |
| 15361 | Southview | 107 | 287 | – | $162k | 100% |
| 15379 | West Middletown | 64 | 160 | $76k | $110k | 100% |
| 15348 | Millsboro | 39 | 289 | – | – | 100% |
| 15378 | Westland | no residents | 0 | – | – | 100% |
Partly in Washington County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 15322 | Clarksville | 1,892 | 126 | $88k | $112k | 19% |
| 15017 | Bridgeville | 17,782 | 1,457 | $87k | $247k | 13% |
| 15026 | Clinton | 4,175 | 121 | $116k | $276k | 5% |
| 15129 | South Park | 10,789 | 1,393 | $100k | $252k | 2% |
| 15241 | Pittsburgh | 22,294 | 2,181 | $154k | $423k | 1% |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
14 ZIP codes of Washington County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Washington | Elsewhere |
|---|---|---|
| 15241 | 1% | Allegheny County 99% |
| 15017 | 13% | Allegheny County 87% |
| 15057 | 65% | Allegheny County 35% |
| 15129 | 2% | Allegheny County 98% |
| 15063 | 61% | Allegheny County 39% |
| 15332 | 87% | Allegheny County 13% |
| 15417 | 50% | Fayette County 50% |
| 15021 | 99% | |
| 15026 | 5% | Beaver County 72%; Allegheny County 23% |
| 15321 | 86% | Allegheny County 14% |
| 15322 | 19% | Greene County 81% |
| 15345 | 96% | Greene County 4% |
| 15329 | 72% | Greene County 28% |
| 15377 | 69% | Greene County 31% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 15336 | Gastonville |
| 15339 | Hendersonville |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Washington County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Washington County's ZIP codes use 5 prefixes: 150, 151, 152, 153 and 154.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 150 | Pittsburgh, PA (SCF 150) | 16 | 76 |
| 151 | Pittsburgh, PA (SCF 150) | 1 | 30 |
| 152 | Pittsburgh, PA (SCF 150) | 1 | 75 |
| 153 | Pittsburgh, PA (SCF 150) | 35 | 57 |
| 154 | Pittsburgh, PA (SCF 150) | 10 | 73 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.