| Zip Code | City | Population ↓ |
|---|---|---|
| 15501 | Somerset | 16,508 |
| 15963 | Windber | 10,338 |
| 15552 | Meyersdale | 5,688 |
| 15530 | Berlin | 5,037 |
| 15531 | Boswell | 3,577 |
| 15557 | Rockwood | 3,389 |
| 15541 | Friedens | 3,262 |
| 15563 | Stoystown | 2,736 |
| 15935 | Hollsopple | 2,647 |
| 15926 | Central City | 2,470 |
| 15510 | Somerset | 2,194 |
| 15558 | Salisbury | 2,089 |
| 15928 | Davidsville | 2,075 |
| 15424 | Confluence | 1,919 |
| 15936 | Hooversville | 1,470 |
| 15542 | Garrett | 1,066 |
| 15924 | Cairnbrook | 880 |
| 15547 | Jennerstown | 871 |
| 15538 | Fairhope | 720 |
| 15546 | Jenners | 702 |
| 15411 | Addison | 701 |
| 15937 | Jerome | 676 |
| 15551 | Markleton | 550 |
| 15540 | Fort Hill | 361 |
| 15520 | Acosta | 322 |
| 15562 | Springs | 316 |
| 15544 | Gray | 223 |
| 15953 | Seanor | 161 |
| 15532 | Boynton | 149 |
| 15560 | Shanksville | 144 |
| 15561 | Sipesville | 111 |
| 15564 | Wellersburg | 101 |
| 15502 | Hidden Valley | 82 |
| 15555 | Quecreek | 81 |
| 15565 | West Salisbury | 11 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 35 ZCTAs in Somerset County, Pennsylvania (US Census).