County ZIP codes · Maine · FIPS 23025
Somerset County, ME ZIP Codes
Somerset County, Maine has 27 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 26 residential and 1 for PO boxes or a single organization. 25 of the residential ones lie mainly in Somerset County and 1 mainly in a neighboring county; 3 cross the county line. Median household income ranges from $39,860 in 04920 (Bingham) to $65,931 in 04957 (Norridgewock) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Somerset County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $53,534 and $61,747.
They carry 26 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 26 residential ZIP codes in Somerset County
25 ZIP codes lie mainly in Somerset County; 1 more reaches into it from a neighboring county and follows the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 04976 | Skowhegan | 10,072 | 101 | $54k | $165k | 100% |
| 04937 | Fairfield | 6,358 | 122 | $64k | $164k | 100% |
| 04950 | Madison | 4,782 | 92 | $62k | $188k | 100% |
| 04957 | Norridgewock | 4,006 | 52 | $66k | $179k | 100% |
| 04967 | Pittsfield | 3,930 | 82 | $57k | $164k | 100% |
| 04965 | Palmyra | 2,209 | 55 | $61k | $155k | 100% |
| 04924 | Canaan | 2,063 | 50 | $58k | $160k | 100% |
| 04958 | North Anson | 2,002 | 37 | $55k | $156k | 100% |
| 04911 | Anson | 1,880 | 30 | $63k | $122k | 100% |
| 04920 | Bingham | 1,866 | 8 | $40k | $128k | 100% |
| 04971 | Saint Albans | 1,831 | 41 | $66k | $194k | 100% |
| 04943 | Hartland | 1,602 | 43 | $46k | $139k | 100% |
| 04945 | Jackman | 1,325 | 2 | $52k | $197k | 100% |
| 04942 | Harmony | 1,192 | 10 | $54k | $170k | 56% |
| 04979 | Solon | 963 | 24 | $69k | $184k | 100% |
| 04961 | New Portland | 919 | 2 | $54k | $162k | 100% |
| 04912 | Athens | 858 | 15 | $51k | $158k | 100% |
| 04978 | Smithfield | 856 | 43 | $108k | $243k | 100% |
| 04929 | Detroit | 650 | 32 | $51k | $138k | 100% |
| 04923 | Cambridge | 532 | 28 | $63k | $215k | 100% |
| 04478 | Rockwood | 316 | 1 | $53k | $379k | 84% |
| 04985 | West Forks | 217 | 1 | $67k | $287k | 100% |
| 04944 | Hinckley | 140 | 81 | – | $172k | 100% |
| 04925 | Caratunk | 101 | 2 | $73k | $470k | 100% |
| 04975 | Shawmut | 21 | 382 | – | – | 100% |
Partly in Somerset County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 04930 | Dexter | 4,258 | 71 | $54k | $169k | 42% |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
3 ZIP codes of Somerset County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Somerset | Elsewhere |
|---|---|---|
| 04930 | 42% | Penobscot County 58% |
| 04942 | 56% | Piscataquis County 44% |
| 04478 | 84% | Piscataquis County 16% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 04954 | New Portland |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Somerset County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Somerset County's ZIP codes use 2 prefixes: 044 and 049.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.