31 cities
| City | County | 2026 Pop. ↓ |
|---|---|---|
| Pasco | Franklin County | 83,743 |
| Puyallup | Pierce County | 42,309 |
| Parkland | Pierce County | 39,952 |
| Pullman | Whitman County | 33,886 |
| Port Orchard | Kitsap County | 20,868 |
| Port Angeles | Clallam County | 20,167 |
| Poulsbo | Kitsap County | 12,855 |
| Prairie Ridge | Pierce County | 12,190 |
| Port Townsend | Jefferson County | 10,888 |
| Picnic Point | Snohomish County | 10,069 |
| Pacific | King County | 7,008 |
| Parkwood | Kitsap County | 6,941 |
| Prosser | Benton County | 6,737 |
| Prairie Heights | Pierce County | 4,912 |
| Port Hadlock-Irondale | Jefferson County | 3,722 |
| Port Ludlow | Jefferson County | 3,066 |
| Port Angeles East | Clallam County | 3,035 |
| Peaceful Valley | Whatcom County | 2,508 |
| Pomeroy | Garfield County | 1,505 |
| Point Roberts | Whatcom County | 1,266 |
| Puget Island | Wahkiakum County | 1,206 |
| Purdy | Pierce County | 1,148 |
| Palouse | Whitman County | 1,036 |
| Pe Ell | Lewis County | 682 |
| Pateros | Okanogan County | 642 |
| Port Gamble Tribal Community | Kitsap County | 544 |
| Prescott | Walla Walla County | 360 |
| Pataha | Columbia County | 133 |
| Porter | Grays Harbor County | 112 |
| Parker | Yakima County | 75 |
| Packwood | Lewis County | 66 |