| County | Towns |
|---|---|
| Columbia County | |
| St Helens | |
| Scappoose | |
| Warren | |
| Rainier | |
| Clatskanie | |
| Vernonia | |
| Birkenfeld | |
| West Court | |
| Washington County | |
| Hillsboro | |
| Beaverton | |
| Tigard | |
| Forest Grove | |
| Aloha | |
| Sherwood | |
| Wilsonville | |
| Gaston |
| County | Towns |
|---|---|
| Multnomah County | |
| Portland | |
| Troutdale | |
| Lake Oswego | |
| West Lynn | |
| Clackamas County | |
| Clackamas | |
| Gresham | |
| Oregon City | |
| Boring | |
| Sandy | |
| Canby | |
| Gladstone | |
| Milwaukee | |
| Clatsop County | |
| Astoria | |
| Seaside | |
| Warrenton |
| County | Towns |
|---|---|
| Cowlitz County | |
| Long View | |
| Kelso | |
| Castle Rock | |
| Kalama | |
| Clark County | |
| Vancouver | |
| Camas | |
| Battleground | |
| Washougal | |
| Ridgefield | |
| La Center | |
| Woodland |
