Maine · United States
ZIP codes by county — Maine
16 counties
| County | FIPS | Population | Median household income |
|---|---|---|---|
| Androscoggin County | 23001 | 112,323 | $67,298 |
| Aroostook County | 23003 | 67,227 | $54,254 |
| Cumberland County | 23005 | 305,940 | $92,983 |
| Franklin County | 23007 | 30,145 | $58,522 |
| Hancock County | 23009 | 56,084 | $69,630 |
| Kennebec County | 23011 | 125,614 | $65,062 |
| Knox County | 23013 | 40,860 | $71,903 |
| Lincoln County | 23015 | 35,840 | $72,026 |
| Oxford County | 23017 | 58,728 | $57,933 |
| Penobscot County | 23019 | 153,571 | $63,248 |
| Piscataquis County | 23021 | 17,125 | $55,234 |
| Sagadahoc County | 23023 | 37,093 | $82,080 |
| Somerset County | 23025 | 50,852 | $56,199 |
| Waldo County | 23027 | 40,006 | $68,441 |
| Washington County | 23029 | 31,261 | $52,237 |
| York County | 23031 | 214,731 | $82,904 |
County figures are Census county-level values (ACS 5-year); the ZIP list shows the ZIPs whose primary county this is — a ZIP on a border can also serve neighbouring counties. Sources: U.S. Census Bureau.