| # | Growth (from 2025 and 2020) | Population | Red/Blue | County Seat | County | % Correct |
|---|---|---|---|---|---|---|
| 1 | +1.82%; +6.71% | 2,427,007 | Blue | Seattle | King | 100%
|
| 3 | +1.57%; +7.44% | 891,745 | Blue | Everett | Snohomish | 100%
|
| 4 | +0.57%; +3.9% | 562,325 | Red | Spokane | Spokane | 100%
|
| 2 | +0.99%; +3.94% | 960,074 | Blue | Tacoma | Pierce | 88%
|
| 16 | +0.13%; -0.36% | 86,696 | Blue | Coupeville | Island | 75%
|
| 11 | +0.73%; +3.69% | 134,700 | Blue | Mount Vernon | Skagit | 75%
|
| 6 | +1.11%; +4.62% | 309,698 | Blue | Olympia | Thurston | 75%
|
| 9 | +0.96%; +5.29% | 239,490 | Blue | Bellingham | Whatcom | 75%
|
| 8 | +0.51%; +1.73% | 261,183 | Red | Yakima | Yakima | 75%
|
| 26 | +2.06%; +11.11% | 46,830 | Red | Okanogan | Okanogan | 63%
|
| 32 | +0.34%; +5.43% | 18,794 | Blue | Friday Harbor | San Juan | 63%
|
| 21 | +0.45%; -0% | 62,626 | Red | Walla Walla | Walla Walla | 63%
|
| 17 | +0.96%; +4.41% | 82,806 | Red | Wenatchee | Chelan | 50%
|
| 12 | +0.82%; +4.36% | 115,866 | Red | Kelso | Cowlitz | 50%
|
| 7 | +1.32%; +4.76% | 288,960 | Blue | Port Orchard | Kitsap | 50%
|
| 24 | +0.67%; +4.28% | 48,826 | Red | Ellensburg | Kittitas | 50%
|
| 29 | +0.3%; +3.82% | 24,389 | Red | South Bend | Pacific | 50%
|
| 30 | +0.06%; +0.99% | 22,549 | Red | Asotin | Asotin | 38%
|
| 10 | +1.24%; +7.84% | 223,680 | Red | Prosser | Benton | 38%
|
| 18 | +0.47%; +1.72% | 78,696 | Blue | Port Angeles | Clallam | 38%
|
| 5 | +0.9%; +6.24% | 536,873 | Blue | Vancouver | Clark | 38%
|
| 19 | +0.41%; +3.53% | 78,539 | Red | Montesano | Grays Harbor | 38%
|
| 27 | +0.64%; +4% | 34,382 | Blue | Port Townsend | Jefferson | 38%
|
| 15 | +0.89%; +7.34% | 88,619 | Red | Chehalis | Lewis | 38%
|
| 35 | +0.85%; +10.42% | 12,066 | Red | Davenport | Lincoln | 38%
|
| 20 | +1.25%; +8.11% | 71,388 | Red | Shelton | Mason | 38%
|
| 22 | +1.02%; +3.3% | 49,397 | Blue | Colfax | Whitman | 38%
|
| 31 | +0.86%; +3.85% | 21,403 | Red | Ritzville | Adams | 25%
|
| 25 | +1.69%; +10.07% | 47,365 | Red | Waterville | Douglas | 25%
|
| 36 | +0.93%; +6.78% | 7,685 | Red | Republic | Ferry | 25%
|
| 14 | +1.64%; +7.67% | 104,606 | Red | Pasco | Franklin | 25%
|
| 39 | +1.8%; +8.49% | 2,492 | Red | Pomeroy | Garfield | 25%
|
| 13 | +1.53%; +8.58% | 107,975 | Red | Ephrata | Grant | 25%
|
| 28 | +1.78%; +9.54% | 24,996 | Red | Goldendale | Klickitat | 25%
|
| 33 | -0.21%; +5.67% | 14,272 | Red | Newport | Pend Oreille | 25%
|
| 34 | +0.17%; +5.45% | 12,702 | Red | Stevenson | Skamania | 25%
|
| 38 | -0.75%; +0.3% | 3,965 | Red | Dayton | Columbia | 13%
|
| 23 | +0.36%; +5.97% | 49,369 | Red | Colville | Stevens | 13%
|
| 37 | +0.68%; +9.4% | 4,866 | Red | Cathlamet | Wahkiakum | 13%
|