| Alger, Skagit |
98233 |
| Allen, Skagit |
98232 |
| Anacortes, Skagit |
98221 |
| Bow, Skagit |
98232 |
| Burlington, Skagit |
98233 |
| Clearlake, Skagit |
98235 |
| Concrete, Skagit |
98237 |
| Conway, Skagit |
98238 |
| Decatur Island, Skagit |
98221 |
| Diablo, Skagit |
98283 |
| Edison, Skagit |
98232 |
| Guemes, Skagit |
98221 |
| Guemes Island, Skagit |
98221 |
| Hamilton, Skagit |
98255 |
| La Conner, Skagit |
98257 |
| Lyman, Skagit |
98263 |
| Marblemount, Skagit |
98267 |
| Mount Vernon, Skagit |
98273, 98274 |
| Newhalem, Skagit |
98283 |
| Rockport, Skagit |
98283 |
| Samish Island, Skagit |
98232 |
| Sedro Woolley, Skagit |
98284 |
| Similk Beach, Skagit |
98221 |
| Upper Skagit Indian Reservation, Skagit |
98233 |