Towns
| State | City/Town | Town Title |
|---|---|---|
| Washington | Lamont | Lamont, WA |
| Washington | Langley | Langley, WA |
| Washington | Latah | Latah, WA |
| Washington | Laurier | Laurier, WA |
| Washington | Leavenworth | Leavenworth, WA |
| Washington | Lebam | Lebam, WA |
| Washington | Liberty Lake | Liberty Lake, WA |
| Washington | Lilliwaup | Lilliwaup, WA |
| Washington | Lincoln | Lincoln, WA |
| Washington | Lind | Lind, WA |
| Washington | Littlerock | Littlerock, WA |
| Washington | Long Beach | Long Beach, WA |
| Washington | Long Island | Long Island, WA |
| Washington | Longbranch | Longbranch, WA |
| Washington | Longmire | Longmire, WA |
| Washington | Longview | Longview, WA |
| Washington | Loomis | Loomis, WA |
| Washington | Loon Lake | Loon Lake, WA |
| Washington | Lopez Island | Lopez Island, WA |
| Washington | Lummi Island | Lummi Island, WA |
| Washington | Lyle | Lyle, WA |
| Washington | Lyman | Lyman, WA |
| Washington | Lynden | Lynden, WA |
| Washington | Lynnwood | Lynnwood, WA |
| Washington | Mabton | Mabton, WA |