25 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 4976 | Skowhegan | 10,036 |
| 4937 | Fairfield | 6,397 |
| 4950 | Madison | 4,738 |
| 4957 | Norridgewock | 4,025 |
| 4967 | Pittsfield | 3,924 |
| 4958 | North Anson | 2,198 |
| 4924 | Canaan | 2,191 |
| 4965 | Palmyra | 2,147 |
| 4911 | Anson | 1,849 |
| 4971 | Saint Albans | 1,822 |
| 4920 | Bingham | 1,688 |
| 4943 | Hartland | 1,656 |
| 4945 | Jackman | 1,242 |
| 4942 | Harmony | 1,101 |
| 4978 | Smithfield | 943 |
| 4979 | Solon | 830 |
| 4929 | Detroit | 788 |
| 4912 | Athens | 783 |
| 4961 | New Portland | 732 |
| 4923 | Cambridge | 522 |
| 4478 | Rockwood | 507 |
| 4985 | West Forks | 153 |
| 4944 | Hinckley | 78 |
| 4975 | Shawmut | 36 |
| 4925 | Caratunk | 16 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 25 ZCTAs in Somerset County, Maine (US Census).