US Senate 2018 | US Senate Elections | California Races
2018 California U.S. Senate Election Results
Dianne Feinstein
Percent: 54.16%
Votes: 6,019,422
Kevin De Leon
Percent: 45.84%
Votes: 5,093,942
Race Summary
In the 2018 U.S. Senate election in California, incumbent Democrat Dianne Feinstein secured re-election by defeating fellow Democrat Kevin de León, garnering 54.16% of the vote to de León's 45.84%. This election was notable for featuring two Democrats in the general election due to California's nonpartisan blanket primary system.
Full Results
Dianne Feinstein (DEM)
Percent: 54.16%
Votes: 6,019,422
Kevin De Leon (DEM)
Percent: 45.84%
Votes: 5,093,942
Total votes: 11,113,364
State Map
Results by County
Alameda County
Dianne Feinstein (DEM)
Percent: 58.38%
Votes: 318,377
Kevin De Leon (DEM)
Percent: 41.62%
Votes: 226,950
Total votes: 545,327
Calaveras County
Dianne Feinstein (DEM)
Percent: 40.44%
Votes: 7,031
Kevin De Leon (DEM)
Percent: 59.56%
Votes: 10,357
Total votes: 17,388
El Dorado County
Dianne Feinstein (DEM)
Percent: 46.54%
Votes: 33,772
Kevin De Leon (DEM)
Percent: 53.46%
Votes: 38,791
Total votes: 72,563
Imperial County
Dianne Feinstein (DEM)
Percent: 43.35%
Votes: 13,121
Kevin De Leon (DEM)
Percent: 56.65%
Votes: 17,150
Total votes: 30,271
Lake County
Dianne Feinstein (DEM)
Percent: 44.11%
Votes: 8,142
Kevin De Leon (DEM)
Percent: 55.89%
Votes: 10,317
Total votes: 18,459
Marin County
Dianne Feinstein (DEM)
Percent: 65.32%
Votes: 80,319
Kevin De Leon (DEM)
Percent: 34.68%
Votes: 42,638
Total votes: 122,957
Modoc County
Dianne Feinstein (DEM)
Percent: 28.69%
Votes: 751
Kevin De Leon (DEM)
Percent: 71.31%
Votes: 1,867
Total votes: 2,618
Nevada County
Dianne Feinstein (DEM)
Percent: 48.14%
Votes: 22,198
Kevin De Leon (DEM)
Percent: 51.86%
Votes: 23,911
Total votes: 46,109
Riverside County
Dianne Feinstein (DEM)
Percent: 49.19%
Votes: 269,567
Kevin De Leon (DEM)
Percent: 50.81%
Votes: 278,409
Total votes: 547,976
San Diego County
Dianne Feinstein (DEM)
Percent: 52.92%
Votes: 526,628
Kevin De Leon (DEM)
Percent: 47.08%
Votes: 468,564
Total votes: 995,192
San Mateo County
Dianne Feinstein (DEM)
Percent: 62.98%
Votes: 168,679
Kevin De Leon (DEM)
Percent: 37.02%
Votes: 99,136
Total votes: 267,815
Shasta County
Dianne Feinstein (DEM)
Percent: 34.87%
Votes: 19,397
Kevin De Leon (DEM)
Percent: 65.13%
Votes: 36,227
Total votes: 55,624
Sonoma County
Dianne Feinstein (DEM)
Percent: 56.00%
Votes: 108,472
Kevin De Leon (DEM)
Percent: 44.00%
Votes: 85,220
Total votes: 193,692
Trinity County
Dianne Feinstein (DEM)
Percent: 38.09%
Votes: 1,746
Kevin De Leon (DEM)
Percent: 61.91%
Votes: 2,838
Total votes: 4,584
Yolo County
Dianne Feinstein (DEM)
Percent: 51.86%
Votes: 35,071
Kevin De Leon (DEM)
Percent: 48.14%
Votes: 32,551
Total votes: 67,622
Alpine County
Dianne Feinstein (DEM)
Percent: 48.81%
Votes: 267
Kevin De Leon (DEM)
Percent: 51.19%
Votes: 280
Total votes: 547
Colusa County
Dianne Feinstein (DEM)
Percent: 35.09%
Votes: 1,643
Kevin De Leon (DEM)
Percent: 64.91%
Votes: 3,039
Total votes: 4,682
Fresno County
Dianne Feinstein (DEM)
Percent: 47.68%
Votes: 103,491
Kevin De Leon (DEM)
Percent: 52.32%
Votes: 113,557
Total votes: 217,048
Inyo County
Dianne Feinstein (DEM)
Percent: 39.89%
Votes: 2,344
Kevin De Leon (DEM)
Percent: 60.11%
Votes: 3,532
Total votes: 5,876
Lassen County
Dianne Feinstein (DEM)
Percent: 29.77%
Votes: 2,030
Kevin De Leon (DEM)
Percent: 70.23%
Votes: 4,788
Total votes: 6,818
Mariposa County
Dianne Feinstein (DEM)
Percent: 41.10%
Votes: 2,749
Kevin De Leon (DEM)
Percent: 58.90%
Votes: 3,939
Total votes: 6,688
Mono County
Dianne Feinstein (DEM)
Percent: 47.67%
Votes: 2,001
Kevin De Leon (DEM)
Percent: 52.33%
Votes: 2,197
Total votes: 4,198
Orange County
Dianne Feinstein (DEM)
Percent: 54.38%
Votes: 501,678
Kevin De Leon (DEM)
Percent: 45.62%
Votes: 420,814
Total votes: 922,492
Sacramento County
Dianne Feinstein (DEM)
Percent: 53.03%
Votes: 241,571
Kevin De Leon (DEM)
Percent: 46.97%
Votes: 213,949
Total votes: 455,520
San Francisco County
Dianne Feinstein (DEM)
Percent: 64.23%
Votes: 226,167
Kevin De Leon (DEM)
Percent: 35.77%
Votes: 125,954
Total votes: 352,121
Santa Barbara County
Dianne Feinstein (DEM)
Percent: 55.15%
Votes: 75,274
Kevin De Leon (DEM)
Percent: 44.85%
Votes: 61,217
Total votes: 136,491
Sierra County
Dianne Feinstein (DEM)
Percent: 38.51%
Votes: 506
Kevin De Leon (DEM)
Percent: 61.49%
Votes: 808
Total votes: 1,314
Stanislaus County
Dianne Feinstein (DEM)
Percent: 42.89%
Votes: 58,375
Kevin De Leon (DEM)
Percent: 57.11%
Votes: 77,724
Total votes: 136,099
Tulare County
Dianne Feinstein (DEM)
Percent: 39.88%
Votes: 33,005
Kevin De Leon (DEM)
Percent: 60.12%
Votes: 49,765
Total votes: 82,770
Yuba County
Dianne Feinstein (DEM)
Percent: 39.17%
Votes: 6,224
Kevin De Leon (DEM)
Percent: 60.83%
Votes: 9,666
Total votes: 15,890
Amador County
Dianne Feinstein (DEM)
Percent: 41.44%
Votes: 5,835
Kevin De Leon (DEM)
Percent: 58.56%
Votes: 8,244
Total votes: 14,079
Contra Costa County
Dianne Feinstein (DEM)
Percent: 58.34%
Votes: 222,349
Kevin De Leon (DEM)
Percent: 41.66%
Votes: 158,748
Total votes: 381,097
Glenn County
Dianne Feinstein (DEM)
Percent: 34.79%
Votes: 2,341
Kevin De Leon (DEM)
Percent: 65.21%
Votes: 4,388
Total votes: 6,729
Kern County
Dianne Feinstein (DEM)
Percent: 39.99%
Votes: 66,628
Kevin De Leon (DEM)
Percent: 60.01%
Votes: 99,981
Total votes: 166,609
Los Angeles County
Dianne Feinstein (DEM)
Percent: 57.73%
Votes: 1,565,167
Kevin De Leon (DEM)
Percent: 42.27%
Votes: 1,146,044
Total votes: 2,711,211
Mendocino County
Dianne Feinstein (DEM)
Percent: 49.32%
Votes: 15,113
Kevin De Leon (DEM)
Percent: 50.68%
Votes: 15,529
Total votes: 30,642
Monterey County
Dianne Feinstein (DEM)
Percent: 52.69%
Votes: 56,320
Kevin De Leon (DEM)
Percent: 47.31%
Votes: 50,562
Total votes: 106,882
Placer County
Dianne Feinstein (DEM)
Percent: 46.46%
Votes: 66,578
Kevin De Leon (DEM)
Percent: 53.54%
Votes: 76,733
Total votes: 143,311
San Benito County
Dianne Feinstein (DEM)
Percent: 47.88%
Votes: 8,607
Kevin De Leon (DEM)
Percent: 52.12%
Votes: 9,371
Total votes: 17,978
San Joaquin County
Dianne Feinstein (DEM)
Percent: 46.13%
Votes: 79,088
Kevin De Leon (DEM)
Percent: 53.87%
Votes: 92,351
Total votes: 171,439
Santa Clara County
Dianne Feinstein (DEM)
Percent: 59.78%
Votes: 339,866
Kevin De Leon (DEM)
Percent: 40.22%
Votes: 228,642
Total votes: 568,508
Siskiyou County
Dianne Feinstein (DEM)
Percent: 39.26%
Votes: 5,772
Kevin De Leon (DEM)
Percent: 60.74%
Votes: 8,930
Total votes: 14,702
Sutter County
Dianne Feinstein (DEM)
Percent: 42.57%
Votes: 10,501
Kevin De Leon (DEM)
Percent: 57.43%
Votes: 14,166
Total votes: 24,667
Tuolumne County
Dianne Feinstein (DEM)
Percent: 40.85%
Votes: 7,783
Kevin De Leon (DEM)
Percent: 59.15%
Votes: 11,271
Total votes: 19,054
Butte County
Dianne Feinstein (DEM)
Percent: 42.92%
Votes: 32,418
Kevin De Leon (DEM)
Percent: 57.08%
Votes: 43,108
Total votes: 75,526
Del Norte County
Dianne Feinstein (DEM)
Percent: 37.84%
Votes: 2,590
Kevin De Leon (DEM)
Percent: 62.16%
Votes: 4,254
Total votes: 6,844
Humboldt County
Dianne Feinstein (DEM)
Percent: 44.77%
Votes: 21,336
Kevin De Leon (DEM)
Percent: 55.23%
Votes: 26,319
Total votes: 47,655
Kings County
Dianne Feinstein (DEM)
Percent: 37.87%
Votes: 9,599
Kevin De Leon (DEM)
Percent: 62.13%
Votes: 15,748
Total votes: 25,347
Madera County
Dianne Feinstein (DEM)
Percent: 41.11%
Votes: 13,284
Kevin De Leon (DEM)
Percent: 58.89%
Votes: 19,032
Total votes: 32,316
Merced County
Dianne Feinstein (DEM)
Percent: 45.81%
Votes: 23,659
Kevin De Leon (DEM)
Percent: 54.19%
Votes: 27,985
Total votes: 51,644
Napa County
Dianne Feinstein (DEM)
Percent: 54.51%
Votes: 27,904
Kevin De Leon (DEM)
Percent: 45.49%
Votes: 23,290
Total votes: 51,194
Plumas County
Dianne Feinstein (DEM)
Percent: 38.87%
Votes: 2,815
Kevin De Leon (DEM)
Percent: 61.13%
Votes: 4,428
Total votes: 7,243
San Bernardino County
Dianne Feinstein (DEM)
Percent: 49.97%
Votes: 233,103
Kevin De Leon (DEM)
Percent: 50.03%
Votes: 233,360
Total votes: 466,463
San Luis Obispo County
Dianne Feinstein (DEM)
Percent: 49.63%
Votes: 53,242
Kevin De Leon (DEM)
Percent: 50.37%
Votes: 54,027
Total votes: 107,269
Santa Cruz County
Dianne Feinstein (DEM)
Percent: 57.51%
Votes: 64,178
Kevin De Leon (DEM)
Percent: 42.49%
Votes: 47,416
Total votes: 111,594
Solano County
Dianne Feinstein (DEM)
Percent: 52.89%
Votes: 70,174
Kevin De Leon (DEM)
Percent: 47.11%
Votes: 62,506
Total votes: 132,680
Tehama County
Dianne Feinstein (DEM)
Percent: 32.57%
Votes: 5,435
Kevin De Leon (DEM)
Percent: 67.43%
Votes: 11,253
Total votes: 16,688
Ventura County
Dianne Feinstein (DEM)
Percent: 51.32%
Votes: 137,141
Kevin De Leon (DEM)
Percent: 48.68%
Votes: 130,101
Total votes: 267,242