| Locality | Post Code |
|---|---|
| Belfast, Waldo | 04915 |
| Belmont, Waldo | 04952 |
| Brooks, Waldo | 04921 |
| Burnham, Waldo | 04922 |
| Frankfort, Waldo | 04438 |
| Freedom, Waldo | 04941 |
| Islesboro, Waldo | 04848 |
| Jackson, Waldo | 04921 |
| Knox, Waldo | 04986 |
| Liberty, Waldo | 04949 |
| Lincolnville, Waldo | 04849 |
| Lincolnville Center, Waldo | 04850 |
| Monroe, Waldo | 04951 |
| Montville, Waldo | 04941 |
| Morrill, Waldo | 04952 |
| Northport, Waldo | 04849 |
| Palermo, Waldo | 04354 |
| Prospect, Waldo | 04981 |
| Sandy Point, Waldo | 04972 |
| Searsmont, Waldo | 04973 |
| Searsport, Waldo | 04974 |
| Stockton Springs, Waldo | 04981 |
| Swanville, Waldo | 04915 |
| Thorndike, Waldo | 04986 |
| Troy, Waldo | 04987 |
| Unity, Waldo | 04988 |
| Maine Postal Codes | |
|---|---|
| York | Washington |
| Waldo | Somerset |
| Sagadahoc | Piscataquis |
| Penobscot | Oxford |
| Lincoln | Knox |
| Kennebec | Hancock |
| Franklin | Cumberland |
| Aroostook | Androscoggin |