Senate Elections 2020 | US Senate Elections | Arizona Races
2020 Arizona U.S. Senate Election Results
Mark Kelly (DEM)
Percent: 51.16%
Votes: 1,716,467
Martha McSally (REP)
Percent: 48.81%
Votes: 1,637,661
Race Summary
In the Arizona 2020 United States Senate special election held on November 3, Democrat Mark Kelly defeated incumbent Republican Senator Martha McSally, with Kelly earning 51.16% of the votes against McSally's 48.81%. This election aimed to fill the vacancy the late Senator John McCain left. McSally had been appointed to the position in 2019 following transitional appointments after McCain's passing. Kelly's victory represented the first time since 1962 that a Democrat won Arizona's Class 3 Senate seat, marking a historic moment as both Senate seats in Arizona were held by Democrats.
Full Results
Mark Kelly (DEM)
Percent: 51.16%
Votes: 1,716,467
Martha McSally (REP)
Percent: 48.81%
Votes: 1,637,661
Write-Ins
Percent: 0.04%
Votes: 1,189
Total votes: 3,355,317
State Map
Results by County
County
Results
Election
Results
Election
Results
Election
Results
Results by County
Apache County
Mark Kelly (DEM)
Percent: 68.48%
Votes: 24,050
Martha McSally (REP)
Percent: 31.47%
Votes: 11,052
Write-Ins
Percent: 0.05%
Votes: 16
Total votes: 35,118
Graham County
Mark Kelly (DEM)
Percent: 30.42%
Votes: 4,506
Martha McSally (REP)
Percent: 69.56%
Votes: 10,303
Write-Ins
Percent: 0.01%
Votes: 2
Total votes: 14,811
Mohave County
Mark Kelly (DEM)
Percent: 26.66%
Votes: 27,414
Martha McSally (REP)
Percent: 73.29%
Votes: 75,359
Write-Ins
Percent: 0.04%
Votes: 46
Total votes: 102,819
Santa Cruz County
Mark Kelly (DEM)
Percent: 70.66%
Votes: 13,689
Martha McSally (REP)
Percent: 29.34%
Votes: 5,685
Write-Ins
Percent: 0.00%
Votes: 0
Total votes: 19,374
Cochise County
Mark Kelly (DEM)
Percent: 41.35%
Votes: 24,843
Martha McSally (REP)
Percent: 58.61%
Votes: 35,214
Write-Ins
Percent: 0.04%
Votes: 25
Total votes: 60,082
Greenlee County
Mark Kelly (DEM)
Percent: 38.67%
Votes: 1,403
Martha McSally (REP)
Percent: 61.33%
Votes: 2,225
Write-Ins
Percent: 0.00%
Votes: 0
Total votes: 3,628
Navajo County
Mark Kelly (DEM)
Percent: 47.50%
Votes: 24,396
Martha McSally (REP)
Percent: 52.47%
Votes: 26,952
Write-Ins
Percent: 0.03%
Votes: 14
Total votes: 51,362
Yavapai County
Mark Kelly (DEM)
Percent: 36.49%
Votes: 51,852
Martha McSally (REP)
Percent: 63.47%
Votes: 90,180
Write-Ins
Percent: 0.04%
Votes: 51
Total votes: 142,083
Coconino County
Mark Kelly (DEM)
Percent: 62.55%
Votes: 45,561
Martha McSally (REP)
Percent: 37.42%
Votes: 27,255
Write-Ins
Percent: 0.03%
Votes: 25
Total votes: 72,841
La Paz County
Mark Kelly (DEM)
Percent: 34.01%
Votes: 2,492
Martha McSally (REP)
Percent: 65.99%
Votes: 4,835
Write-Ins
Percent: 0.00%
Votes: 0
Total votes: 7,327
Pima County
Mark Kelly (DEM)
Percent: 59.84%
Votes: 309,142
Martha McSally (REP)
Percent: 40.13%
Votes: 207,317
Write-Ins
Percent: 0.03%
Votes: 170
Total votes: 516,629
Yuma County
Mark Kelly (DEM)
Percent: 49.14%
Votes: 33,961
Martha McSally (REP)
Percent: 50.85%
Votes: 35,144
Write-Ins
Percent: 0.01%
Votes: 10
Total votes: 69,115
Gila County
Mark Kelly (DEM)
Percent: 35.03%
Votes: 9,648
Martha McSally (REP)
Percent: 64.95%
Votes: 17,889
Write-Ins
Percent: 0.03%
Votes: 7
Total votes: 27,544
Maricopa County
Mark Kelly (DEM)
Percent: 51.94%
Votes: 1,064,396
Martha McSally (REP)
Percent: 48.03%
Votes: 984,203
Write-Ins
Percent: 0.03%
Votes: 698
Total votes: 2,049,297
Pinal County
Mark Kelly (DEM)
Percent: 43.18%
Votes: 79,114
Martha McSally (REP)
Percent: 56.78%
Votes: 104,048
Write-Ins
Percent: 0.04%
Votes: 73
Total votes: 183,235