25 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 04976 | Skowhegan | 10,117 |
| 04937 | Fairfield | 6,411 |
| 04950 | Madison | 4,761 |
| 04957 | Norridgewock | 4,090 |
| 04967 | Pittsfield | 3,918 |
| 04965 | Palmyra | 2,150 |
| 04958 | North Anson | 2,135 |
| 04924 | Canaan | 2,082 |
| 04911 | Anson | 1,787 |
| 04920 | Bingham | 1,775 |
| 04971 | Saint Albans | 1,703 |
| 04943 | Hartland | 1,681 |
| 04945 | Jackman | 1,270 |
| 04942 | Harmony | 1,154 |
| 04912 | Athens | 937 |
| 04979 | Solon | 919 |
| 04978 | Smithfield | 867 |
| 04961 | New Portland | 795 |
| 04929 | Detroit | 706 |
| 04923 | Cambridge | 520 |
| 04478 | Rockwood | 491 |
| 04985 | West Forks | 163 |
| 04925 | Caratunk | 80 |
| 04944 | Hinckley | 63 |
| 04975 | Shawmut | 49 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 25 ZCTAs in Somerset County, Maine (US Census).