ZIP CodesZIP codes in Knox County, Maine
Knox County, Maine has 20 ZIP codes in this list, from 04547 to 04865. They cover 20 places, among them Friendship, Cushing, Washington and Isle Au Haut.
Nothing in this county matches.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 04547 | Friendship | 14.1 | 43.981, -69.335 |
| 04563 | Cushing | 19.2 | 43.987, -69.272 |
| 04574 | Washington | 38.0 | 44.269, -69.384 |
| 04645 | Isle Au Haut | 12.5 | 44.056, -68.621 |
| 04841 | Rockland | 12.8 | 44.112, -69.114 |
| 04843 | Camden | 18.5 | 44.214, -69.077 |
| 04847 | Hope | 22.0 | 44.259, -69.147 |
| 04851 | Matinicus | 1.9 | 43.865, -68.887 |
| 04853 | North Haven | 11.4 | 44.144, -68.867 |
| 04854 | Owls Head | 10.6 | 44.073, -69.089 |
| 04855 | Port Clyde | 1.2 | 43.927, -69.253 |
| 04856 | Rockport | 21.6 | 44.189, -69.090 |
| 04858 | South Thomaston | 11.4 | 44.038, -69.136 |
| 04859 | Spruce Head | 4.4 | 44.010, -69.171 |
| 04860 | Tenants Harbor | 19.4 | 43.956, -69.231 |
| 04861 | Thomaston | 10.9 | 44.085, -69.189 |
| 04862 | Union | 64.9 | 44.262, -69.277 |
| 04863 | Vinalhaven | 23.3 | 44.040, -68.837 |
| 04864 | Warren | 46.5 | 44.127, -69.248 |
| 04865 | West Rockport | no area | 44.192, -69.121 |
The ZIP code areas of Knox County add up to about 365 square miles of land (945 sq km) as the Census Bureau draws them. The largest is 04862 (Union), with 64.9 square miles.
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Friendship, ME 04547.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.