| State | County | Pop. | Density | Voted | % Dem. | % Rep. | Win |
|---|---|---|---|---|---|---|---|
| Washington | benton county | 204390 | 46.4208 | 102307 | 0.378332% | 0.590038% | Republican |
| Washington | chelan county | 77200 | 10.2038 | 43025 | 0.449715% | 0.528669% | Republican |
| Washington | clallam county | 77331 | 17.1726 | 49025 | 0.504253% | 0.470413% | Democrat |
| Washington | clark county | 488241 | 299.952 | 273451 | 0.51316% | 0.461885% | Democrat |
| Washington | columbia county | 3985 | 1.77141 | 2482 | 0.269138% | 0.706688% | Republican |
| Washington | cowlitz county | 110593 | 37.4419 | 59969 | 0.399173% | 0.57403% | Republican |
| Washington | douglas county | 43429 | 9.21694 | 21183 | 0.368739% | 0.611575% | Republican |
| Washington | ferry county | 7627 | 1.33658 | 4351 | 0.341531% | 0.636865% | Republican |
| Washington | franklin county | 95222 | 29.6114 | 32226 | 0.413951% | 0.559765% | Republican |
| Washington | garfield county | 2225 | 1.20855 | 1481 | 0.24713% | 0.72181% | Republican |
| Washington | grant county | 97733 | 14.0829 | 37475 | 0.315384% | 0.660814% | Republican |
| Washington | grays harbor county | 75061 | 15.2429 | 38256 | 0.453628% | 0.519579% | Republican |
| Washington | island county | 85141 | 157.754 | 53539 | 0.54564% | 0.424849% | Democrat |
| Washington | jefferson county | 32221 | 6.89693 | 24658 | 0.697705% | 0.281085% | Democrat |
| Washington | king county | 2252782 | 411.214 | 1202570 | 0.754476% | 0.223826% | Democrat |