| ZIP Codes: | 61 ZIP Codes (35 Standard, 26 PO Box, 0 Unique) [See All] |
| Area Codes: | 412 / 582 / 724 / 814 / 878 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:13:31 PM |
| Population: | 134,909 [See All] |
| FIPS: | 42051 |
| CBSA: | Pittsburgh, PA |
| Land Area: | 775 sq mi |
| Water Area: | 7 sq mi |
| Coordinates: | 39.9420, -79.7489 |
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134,909 residents live across 61 ZIPs covering 775 sq mi, served by 61 distinct USPS-recognized cities.
Population moved from 144,033 to 133,796 from 2014 to 2024 — a -7.1% change. 15 ZIPs gained residents, 41 lost.
The county's wealthiest ZIP 15484 (Uledi, $98,579 median) and poorest ZIP 15451 (Lake Lynn, $34,861) are 10.5 miles apart — a 2.8× income gap across local geography.
Median home values vary 3.4× across this county — from $66,400 in 15451 (Lake Lynn) to $227,700 in 15437 (Farmington).
Density varies 121× across the county — from 30 people/sq mi in 15464 (Mill Run) to 3,590 in 15450 (La Belle).
Educational attainment ranges from 1.1% bachelor's+ in 15450 (La Belle) to 38.4% in 15480 (Smock) — the breadth of educational profiles across the area.
Within Pennsylvania, this is the #26 most populous of 67 counties and ranks #50 for median household income .
Weighted by population, the typical household earns about $58,510 across the county — reflecting what a typical resident sees, not a simple ZIP average.
20.2% of adults age 25+ hold a bachelor's degree or higher (20,053 of 99,096 reporting).
35 Standard delivery, 26 PO Box only, 0 single-entity Unique ZIPs serve this county.
Fayette County lost 6.3% of residents between 2014 and 2024. ZIPs that shed the largest share:
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 15401 | Uniontown | Standard | 29,942 | $53,925 | 56.4 | -5.7% |
| 15425 | Connellsville | Standard | 17,545 | $53,160 | 59.2 | -9.6% |
| 15012 | Belle Vernon | Standard | 15,412 | $60,172 | 33.0 | -2.4% |
| 15417 | Brownsville | Standard | 7,363 | $55,395 | 20.8 | -13.9% |
| 15478 | Smithfield | Standard | 5,560 | $67,449 | 60.7 | -16.9% |
| 15431 | Dunbar | Standard | 4,661 | $62,202 | 58.4 | 11.0% |
| 15461 | Masontown | Standard | 3,792 | $57,596 | 12.1 | -8.0% |
| 15473 | Perryopolis | Standard | 3,422 | $69,438 | 22.2 | -19.5% |
| 15458 | Mc Clellandtown | Standard | 2,620 | $61,979 | 16.2 | -4.0% |
| 15442 | Grindstone | Standard | 2,596 | $57,246 | 16.2 | 46.3% |
| 15456 | Lemont Furnace | Standard | 2,534 | $58,828 | 7.1 | -5.8% |
| 15437 | Farmington | Standard | 2,518 | $64,813 | 69.3 | 3.9% |
| 15474 | Point Marion | Standard | 2,456 | $62,500 | 8.7 | 24.5% |
| 15469 | Normalville | Standard | 2,377 | $56,301 | 32.8 | -5.8% |
| 15445 | Hopwood | Standard | 2,314 | $47,955 | 22.5 | -3.9% |
| 15450 | La Belle | Standard | 2,252 | $53,500 | 0.6 | 1.7% |
| 15468 | New Salem | Standard | 2,211 | $69,375 | 12.3 | -5.5% |
| 15486 | Vanderbilt | Standard | 2,027 | $66,250 | 21.8 | -0.5% |
| 15438 | Fayette City | Standard | 1,915 | $53,917 | 11.9 | -8.6% |
| 15459 | Markleysburg | Standard | 1,861 | $71,250 | 33.8 | 29.6% |
| 15480 | Smock | Standard | 1,766 | $47,375 | 19.2 | -11.0% |
| 15428 | Dawson | Standard | 1,763 | $70,368 | 20.6 | -4.0% |
| 15436 | Fairchance | Standard | 1,750 | $62,917 | 6.7 | -31.6% |
| 15464 | Mill Run | Standard | 1,564 | $46,250 | 52.9 | -2.1% |
| 15444 | Hiller | Standard | 1,066 | $59,077 | 0.5 | 216.3% |
| 15475 | Republic | PO Box | 944 | $54,706 | 1.1 | -29.8% |
| 15484 | Uledi | PO Box | 792 | $98,579 | 0.5 | 59.0% |
| 15410 | Adah | Standard | 728 | $76,667 | 9.3 | -16.1% |
| 15451 | Lake Lynn | Standard | 675 | $34,861 | 10.3 | -35.2% |
| 15631 | Everson | PO Box | 672 | $52,727 | 0.6 | -43.7% |
| 15490 | White | Standard | 659 | $49,408 | 9.2 | -13.6% |
| 15449 | Keisterville | PO Box | 632 | $53,510 | 0.2 | 73.6% |
| 15470 | Ohiopyle | Standard | 601 | $80,750 | 22.0 | -47.9% |
| 15433 | East Millsboro | Standard | 550 | $49,051 | 19.0 | -31.7% |
| 15416 | Brownfield | PO Box | 531 | $119,583 | 0.0 | — |
| 15413 | Allison | Standard | 526 | — | 0.6 | -1.7% |
| 15465 | Mount Braddock | PO Box | 508 | $45,000 | 0.1 | — |
| 15482 | Star Junction | PO Box | 456 | $41,042 | 1.1 | -16.2% |
| 15466 | Newell | PO Box | 413 | $46,429 | 0.3 | -10.8% |
| 15455 | Leisenring | PO Box | 332 | $54,554 | 0.0 | -15.1% |
| 15454 | Leckrone | PO Box | 313 | — | 0.4 | -17.0% |
| 15422 | Chestnut Ridge | PO Box | 302 | $92,727 | 0.3 | 68.7% |
| 15440 | Gibbon Glade | Standard | 297 | $66,250 | 14.1 | 1.7% |
| 15430 | Dickerson Run | PO Box | 224 | $71,184 | 0.4 | 21.7% |
| 15421 | Chalk Hill | PO Box | 207 | $250,001 | 0.7 | 102.9% |
| 15492 | Wickhaven | PO Box | 173 | — | 0.7 | 27.2% |
| 15472 | Oliver | PO Box | 166 | $82,852 | 0.2 | -62.4% |
| 15489 | West Leisenring | PO Box | 146 | — | 1.2 | -55.4% |
| 15420 | Cardale | PO Box | 129 | $81,875 | 0.5 | -67.5% |
| 15443 | Hibbs | PO Box | 89 | — | 0.7 | -70.2% |
| 15460 | Martin | PO Box | 89 | $25,000 | 0.6 | -8.2% |
| 15435 | Fairbank | PO Box | 85 | — | 0.5 | -86.8% |
| 15462 | Melcroft | Standard | 80 | — | 1.6 | -76.3% |
| 15488 | Waltersburg | Standard | 74 | — | 0.4 | — |
| 15447 | Isabella | PO Box | 73 | $60,750 | 0.0 | -37.1% |
| 15463 | Merrittstown | PO Box | 59 | — | 0.9 | — |
| 15467 | New Geneva | PO Box | 52 | $60,313 | 1.2 | -63.9% |
| 15446 | Indian Head | Standard | 35 | — | 0.3 | -84.7% |
| 15476 | Ronco | PO Box | 10 | — | 0.5 | -83.9% |
| 15439 | Gans | PO Box | — | — | 0.0 | — |
| 15415 | Brier Hill | PO Box | — | — | 0.0 | — |