Senate Elections 2018 | US Senate Elections | Washington Races
2018 Washington U.S. Senate Election Results
Maria Cantwell
Percent: 58.43%
Votes: 1,803,364
Susan Hutchison
Percent: 41.57%
Votes: 1,282,804
Race Summary
In the 2018 U.S. Senate election in Washington, incumbent Democrat Maria Cantwell was re-elected, defeating Republican challenger Susan Hutchison with 58.43% of the vote to Hutchison's 41.57%. This victory underscored Cantwell's continued popularity in the state and maintained Democratic control of the seat.
Full Results
Maria Cantwell (DEM)
Percent: 58.43%
Votes: 1,803,364
Susan Hutchison (REP)
Percent: 41.57%
Votes: 1,282,804
Total votes: 3,086,168
State Map
Results by County
Adams County
Maria Cantwell (DEM)
Percent: 32.25%
Votes: 1,365
Susan Hutchison (REP)
Percent: 67.75%
Votes: 2,867
Total votes: 4,232
Clallam County
Maria Cantwell (DEM)
Percent: 50.67%
Votes: 20,036
Susan Hutchison (REP)
Percent: 49.33%
Votes: 19,504
Total votes: 39,540
Douglas County
Maria Cantwell (DEM)
Percent: 36.17%
Votes: 5,390
Susan Hutchison (REP)
Percent: 63.83%
Votes: 9,512
Total votes: 14,902
Grant County
Maria Cantwell (DEM)
Percent: 30.80%
Votes: 8,159
Susan Hutchison (REP)
Percent: 69.20%
Votes: 18,333
Total votes: 26,492
King County
Maria Cantwell (DEM)
Percent: 74.15%
Votes: 708,654
Susan Hutchison (REP)
Percent: 25.85%
Votes: 247,071
Total votes: 955,725
Lewis County
Maria Cantwell (DEM)
Percent: 32.71%
Votes: 11,078
Susan Hutchison (REP)
Percent: 67.29%
Votes: 22,793
Total votes: 33,871
Pacific County
Maria Cantwell (DEM)
Percent: 50.90%
Votes: 5,527
Susan Hutchison (REP)
Percent: 49.10%
Votes: 5,332
Total votes: 10,859
Skagit County
Maria Cantwell (DEM)
Percent: 51.49%
Votes: 28,122
Susan Hutchison (REP)
Percent: 48.51%
Votes: 26,498
Total votes: 54,620
Stevens County
Maria Cantwell (DEM)
Percent: 32.23%
Votes: 7,274
Susan Hutchison (REP)
Percent: 67.77%
Votes: 15,296
Total votes: 22,570
Whatcom County
Maria Cantwell (DEM)
Percent: 59.77%
Votes: 65,043
Susan Hutchison (REP)
Percent: 40.23%
Votes: 43,781
Total votes: 108,824
Asotin County
Maria Cantwell (DEM)
Percent: 41.82%
Votes: 3,809
Susan Hutchison (REP)
Percent: 58.18%
Votes: 5,298
Total votes: 9,107
Clark County
Maria Cantwell (DEM)
Percent: 52.96%
Votes: 102,619
Susan Hutchison (REP)
Percent: 47.04%
Votes: 91,153
Total votes: 193,772
Ferry County
Maria Cantwell (DEM)
Percent: 38.10%
Votes: 1,329
Susan Hutchison (REP)
Percent: 61.90%
Votes: 2,159
Total votes: 3,488
Grays Harbor County
Maria Cantwell (DEM)
Percent: 47.81%
Votes: 13,605
Susan Hutchison (REP)
Percent: 52.19%
Votes: 14,851
Total votes: 28,456
Kitsap County
Maria Cantwell (DEM)
Percent: 56.47%
Votes: 67,847
Susan Hutchison (REP)
Percent: 43.53%
Votes: 52,308
Total votes: 120,155
Lincoln County
Maria Cantwell (DEM)
Percent: 28.76%
Votes: 1,604
Susan Hutchison (REP)
Percent: 71.24%
Votes: 3,974
Total votes: 5,578
Pend Oreille County
Maria Cantwell (DEM)
Percent: 36.13%
Votes: 2,477
Susan Hutchison (REP)
Percent: 63.87%
Votes: 4,379
Total votes: 6,856
Skamania County
Maria Cantwell (DEM)
Percent: 47.71%
Votes: 2,663
Susan Hutchison (REP)
Percent: 52.29%
Votes: 2,919
Total votes: 5,582
Thurston County
Maria Cantwell (DEM)
Percent: 58.54%
Votes: 72,677
Susan Hutchison (REP)
Percent: 41.46%
Votes: 51,472
Total votes: 124,149
Whitman County
Maria Cantwell (DEM)
Percent: 54.35%
Votes: 9,375
Susan Hutchison (REP)
Percent: 45.65%
Votes: 7,875
Total votes: 17,250
Benton County
Maria Cantwell (DEM)
Percent: 37.52%
Votes: 28,187
Susan Hutchison (REP)
Percent: 62.48%
Votes: 46,938
Total votes: 75,125
Columbia County
Maria Cantwell (DEM)
Percent: 33.24%
Votes: 731
Susan Hutchison (REP)
Percent: 66.76%
Votes: 1,468
Total votes: 2,199
Franklin County
Maria Cantwell (DEM)
Percent: 40.26%
Votes: 8,983
Susan Hutchison (REP)
Percent: 59.74%
Votes: 13,329
Total votes: 22,312
Island County
Maria Cantwell (DEM)
Percent: 53.18%
Votes: 22,341
Susan Hutchison (REP)
Percent: 46.82%
Votes: 19,672
Total votes: 42,013
Kittitas County
Maria Cantwell (DEM)
Percent: 43.10%
Votes: 8,330
Susan Hutchison (REP)
Percent: 56.90%
Votes: 10,996
Total votes: 19,326
Mason County
Maria Cantwell (DEM)
Percent: 47.84%
Votes: 13,220
Susan Hutchison (REP)
Percent: 52.16%
Votes: 14,416
Total votes: 27,636
Pierce County
Maria Cantwell (DEM)
Percent: 53.36%
Votes: 174,097
Susan Hutchison (REP)
Percent: 46.64%
Votes: 152,177
Total votes: 326,274
Snohomish County
Maria Cantwell (DEM)
Percent: 57.39%
Votes: 184,218
Susan Hutchison (REP)
Percent: 42.61%
Votes: 136,749
Total votes: 320,967
Wahkiakum County
Maria Cantwell (DEM)
Percent: 44.66%
Votes: 1,082
Susan Hutchison (REP)
Percent: 55.34%
Votes: 1,341
Total votes: 2,423
Yakima County
Maria Cantwell (DEM)
Percent: 41.85%
Votes: 29,476
Susan Hutchison (REP)
Percent: 58.15%
Votes: 40,958
Total votes: 70,434
Chelan County
Maria Cantwell (DEM)
Percent: 44.06%
Votes: 14,787
Susan Hutchison (REP)
Percent: 55.94%
Votes: 18,775
Total votes: 33,562
Cowlitz County
Maria Cantwell (DEM)
Percent: 46.29%
Votes: 20,485
Susan Hutchison (REP)
Percent: 53.71%
Votes: 23,773
Total votes: 44,258
Garfield County
Maria Cantwell (DEM)
Percent: 33.58%
Votes: 445
Susan Hutchison (REP)
Percent: 66.42%
Votes: 880
Total votes: 1,325
Jefferson County
Maria Cantwell (DEM)
Percent: 68.79%
Votes: 14,331
Susan Hutchison (REP)
Percent: 31.21%
Votes: 6,502
Total votes: 20,833
Klickitat County
Maria Cantwell (DEM)
Percent: 45.84%
Votes: 4,889
Susan Hutchison (REP)
Percent: 54.16%
Votes: 5,776
Total votes: 10,665
Okanogan County
Maria Cantwell (DEM)
Percent: 43.44%
Votes: 7,231
Susan Hutchison (REP)
Percent: 56.56%
Votes: 9,414
Total votes: 16,645
San Juan County
Maria Cantwell (DEM)
Percent: 72.60%
Votes: 8,016
Susan Hutchison (REP)
Percent: 27.40%
Votes: 3,026
Total votes: 11,042
Spokane County
Maria Cantwell (DEM)
Percent: 49.23%
Votes: 112,000
Susan Hutchison (REP)
Percent: 50.77%
Votes: 115,508
Total votes: 227,508
Walla Walla County
Maria Cantwell (DEM)
Percent: 46.35%
Votes: 11,862
Susan Hutchison (REP)
Percent: 53.65%
Votes: 13,731
Total votes: 25,593