Towns
| State | City/Town | Town Title |
|---|---|---|
| Washington | Joyce | Joyce, WA |
| Washington | Kahlotus | Kahlotus, WA |
| Washington | Kalama | Kalama, WA |
| Washington | Keller | Keller, WA |
| Washington | Kelso | Kelso, WA |
| Washington | Kenmore | Kenmore, WA |
| Washington | Kennewick | Kennewick, WA |
| Washington | Kent | Kent, WA |
| Washington | Kettle Falls | Kettle Falls, WA |
| Washington | Keyport | Keyport, WA |
| Washington | Kingston | Kingston, WA |
| Washington | Kirkland | Kirkland, WA |
| Washington | Kittitas | Kittitas, WA |
| Washington | Klickitat | Klickitat, WA |
| Washington | La Center | La Center, WA |
| Washington | La Conner | La Conner, WA |
| Washington | La Grande | La Grande, WA |
| Washington | La Push | La Push, WA |
| Washington | Lacey | Lacey, WA |
| Washington | Lacrosse | Lacrosse, WA |
| Washington | Lake Forest Park | Lake Forest Park, WA |
| Washington | Lake Stevens | Lake Stevens, WA |
| Washington | Lakebay | Lakebay, WA |
| Washington | Lakewood | Lakewood, WA |
| Washington | Lamona | Lamona, WA |