| ZIP Codes: | 40 ZIP Codes (26 Standard, 13 PO Box, 1 Unique) [See All] |
| Area Codes: | 582 / 814 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:13:33 PM |
| Population: | 73,052 [See All] |
| FIPS: | 42111 |
| CBSA: | Somerset, PA |
| Land Area: | 1,090 sq mi |
| Water Area: | 8 sq mi |
| Coordinates: | 40.0041, -79.0331 |
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73,052 residents live across 40 ZIPs covering 1,090 sq mi, served by 39 distinct USPS-recognized cities.
Population moved from 77,230 to 73,027 from 2014 to 2024 — a -5.4% change. 11 ZIPs gained residents, 23 lost.
The county's wealthiest ZIP 15928 (Davidsville, $87,237 median) and poorest ZIP 15924 (Cairnbrook, $52,240) are 12.3 miles apart — a 1.7× income gap across local geography.
Median home values vary 3.4× across this county — from $67,600 in 15546 (Jenners) to $227,900 in 15928 (Davidsville).
Density varies 1318× across the county — from 9 people/sq mi in 15540 (Fort Hill) to 12,250 in 15510 (Somerset).
Educational attainment ranges from 0.7% bachelor's+ in 15510 (Somerset) to 38.8% in 15928 (Davidsville) — the breadth of educational profiles across the area.
Within Pennsylvania, this is the #37 most populous of 67 counties and ranks #38 for median household income .
Hosts 1 single-entity Unique ZIP: 15510Sci Somerset .
Weighted by population, the typical household earns about $62,627 across the county — reflecting what a typical resident sees, not a simple ZIP average.
18.0% of adults age 25+ hold a bachelor's degree or higher (9,876 of 54,718 reporting).
26 Standard delivery, 13 PO Box only, 1 single-entity Unique ZIPs serve this county.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
Somerset County lost 5.4% of residents between 2014 and 2024. ZIPs that shed the largest share:
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 15501 | Somerset | Standard | 16,240 | $59,245 | 133.5 | -2.4% |
| 15963 | Windber | Standard | 10,132 | $61,566 | 86.5 | -6.0% |
| 15552 | Meyersdale | Standard | 5,685 | $65,551 | 100.7 | -3.9% |
| 15530 | Berlin | Standard | 5,299 | $59,205 | 84.8 | 0.0% |
| 15531 | Boswell | Standard | 3,603 | $60,855 | 65.9 | -13.7% |
| 15557 | Rockwood | Standard | 3,323 | $61,042 | 91.6 | -7.3% |
| 15541 | Friedens | Standard | 3,112 | $62,992 | 36.5 | -15.7% |
| 15563 | Stoystown | Standard | 2,824 | $62,411 | 53.4 | -13.6% |
| 15926 | Central City | Standard | 2,602 | $62,019 | 32.2 | 0.8% |
| 15935 | Hollsopple | Standard | 2,514 | $61,941 | 24.8 | -1.8% |
| 15928 | Davidsville | Standard | 2,171 | $87,237 | 6.4 | -0.5% |
| 15510 | Somerset | Unique | 2,118 | — | 0.2 | -9.0% |
| 15424 | Confluence | Standard | 2,011 | $56,190 | 68.2 | -18.2% |
| 15558 | Salisbury | Standard | 1,960 | $64,038 | 31.8 | -14.3% |
| 15936 | Hooversville | Standard | 1,463 | $58,396 | 27.4 | -6.3% |
| 15542 | Garrett | Standard | 1,088 | $58,393 | 36.2 | 1.5% |
| 15538 | Fairhope | Standard | 867 | $75,833 | 69.2 | 8.8% |
| 15547 | Jennerstown | PO Box | 862 | $64,716 | 0.9 | 90.3% |
| 15924 | Cairnbrook | Standard | 740 | $52,240 | 28.9 | -20.4% |
| 15411 | Addison | Standard | 695 | $68,125 | 18.2 | -5.3% |
| 15551 | Markleton | Standard | 609 | $67,727 | 29.1 | -34.3% |
| 15937 | Jerome | PO Box | 543 | $83,917 | 0.7 | -27.2% |
| 15546 | Jenners | Standard | 437 | — | 0.8 | 7.9% |
| 15540 | Fort Hill | Standard | 418 | $70,875 | 45.0 | 81.7% |
| 15562 | Springs | Standard | 344 | $84,844 | 3.0 | 115.0% |
| 15520 | Acosta | PO Box | 301 | — | 0.2 | 14.0% |
| 15544 | Gray | PO Box | 274 | $89,536 | 0.3 | 86.4% |
| 15561 | Sipesville | PO Box | 179 | $92,813 | 0.3 | 26.1% |
| 15560 | Shanksville | PO Box | 142 | $65,000 | 0.2 | -20.7% |
| 15502 | Hidden Valley | PO Box | 113 | $80,694 | 4.6 | -11.7% |
| 15532 | Boynton | PO Box | 107 | — | 0.1 | -52.9% |
| 15953 | Seanor | Standard | 96 | $37,014 | 1.0 | -51.8% |
| 15564 | Wellersburg | Standard | 86 | $56,250 | 0.7 | 10.3% |
| 15555 | Quecreek | PO Box | 69 | $76,250 | 0.3 | -25.8% |
| 15565 | West Salisbury | Standard | 25 | $98,750 | 3.4 | — |
| 15485 | Ursina | PO Box | — | — | 0.0 | — |
| 15553 | New Baltimore | PO Box | — | — | 0.2 | — |
| 15549 | Listie | PO Box | — | — | 2.5 | — |
| 15548 | Kantner | Standard | — | — | 0.1 | — |
| 15959 | Tire Hill | PO Box | — | — | 0.0 | — |