100 Smallest ZIP Codes in the United States by Population in Knox County, Maine
Explore the 100 smallest ZIP codes in the United States ranked by population using U.S. Census demographic data. This page lists ZIP codes located in Knox County, Maine.
| Rank | ZIP Code | City | State | Population |
|---|---|---|---|---|
| 1 | 04645 | ISLE AU HAUT | ME | 43 |
| 2 | 04851 | MATINICUS | ME | 95 |
| 3 | 04855 | PORT CLYDE | ME | 266 |
| 4 | 04853 | NORTH HAVEN | ME | 448 |
| 5 | 04859 | SPRUCE HEAD | ME | 781 |
| 6 | 04863 | VINALHAVEN | ME | 981 |
| 7 | 04547 | FRIENDSHIP | ME | 1,145 |
| 8 | 04858 | SOUTH THOMASTON | ME | 1,371 |
| 9 | 04854 | OWLS HEAD | ME | 1,440 |
| 10 | 04563 | CUSHING | ME | 1,464 |
| 11 | 04860 | TENANTS HARBOR | ME | 1,590 |
| 12 | 04574 | WASHINGTON | ME | 1,711 |
| 13 | 04847 | HOPE | ME | 1,795 |
| 14 | 04861 | THOMASTON | ME | 2,753 |
| 15 | 04856 | ROCKPORT | ME | 3,636 |
| 16 | 04862 | UNION | ME | 4,130 |
| 17 | 04864 | WARREN | ME | 4,873 |
| 18 | 04843 | CAMDEN | ME | 5,221 |
| 19 | 04841 | ROCKLAND | ME | 6,986 |