# 2018 United States House of Representatives elections in California

"none" is preferred when the title is already sufficiently detailed; see [[WP:SDNONE]]
Elections in California :
Federal governmentU.S. President
1852
1856
1860
1864
1868
1872
1876
1880
1884
1888
1892
1896
1900
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1928
1932
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1952
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1960
1964
1968
1972
1976
1980
1984
1988
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1996
Dem
Rep
2000
Dem
Rep
2004
Dem
Rep
2008
Dem
Rep
2012
Dem
Rep
2016
Dem
Rep
2020
Dem
Rep
2024
Dem
Rep
U.S. Senate
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1850
1852 sp
1856
1857 sp
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1860 sp
1868
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1873 sp
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1886 sp
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1900 sp
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1932
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1946 sp
1950
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1954 sp
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1968
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1980
1982
1986
1988
1992
1992 sp
1994
1998
2000
2004
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2010
2012
2016
2018
2022
2022 sp
2024
2024 sp
2028
2030
U.S. House of Representatives
1849
1851
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1856
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12th
1948
1950
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1968
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1972
1974
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1978
1980
1982
1984
1986
1987
5th sp
1988
1990
1992
1994
1996
1998
2000
2001
32nd sp
2002
2004
2005
5th sp
48th sp
2006
50th sp
2007
36th sp
2008
12th sp
2009
10th sp
32nd sp
2010
2011
36th sp
2012
2014
2016
2017
34th sp
2018
2020
25th sp
2022
22nd sp
2024
16th
20th sp
30th
45th
47th
2026 :
State governmentExecutive Governor
1849
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1930
1934
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1946
1950
1954
1958
1962
1966
1970
1974
1978
1982
1986
1990
1994
1998
2002
2003 (recall)
2006
2010
2014
2018
2021 (recall)
2022
2026
Lieutenant governor
1950
1954
1958
1962
1966
1970
1974
1978
1982
1986
1990
1994
1998
2002
2006
2010
2014
2018
2022
2026
Attorney general
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1978
1982
1986
1990
1994
1998
2002
2006
2010
2014
2018
2022
2026
Secretary of state
1970
1974
1978
1982
1986
1990
1994
1998
2002
2006
2010
2014
2018
2022
Treasurer
1994
1998
2002
2006
2010
2014
2018
2022
2026
Controller
1994
1998
2002
2006
2010
2014
2018
2022
Insurance commissioner
1994
1998
2002
2006
2010
2014
2018
2022
Superintendent
1994
1998
2002
2006
2010
2014
2018
2022
Board of equalization
2018
2022
Legislature Senate
1988
1990
1992
1994
1996
1998
2000
2002
2004
2006
2008
2010
2012
2014
2016
2018
2020
2022
2024
Special
Assembly
1992
1994
1996
1998
2000
2002
2004
2006
2008
2010
2012
2014
2016
2018
2020
2021 (79th sp)
2022 (17th sp)
2024
Special
Judiciary Court of appeals
1994
1998
2002
2006
Elections by year
1992
1994
1996
1998
2000
2002
2004
2005
2006
2008
Feb
Jun
Nov
2009
2010
Jun
Nov
2012
Jun
Nov
2014
2016
2018
2020
2022
2024 :
State propositions1910–1919
1911
4
7
8
1960–1969
1964
14
1970–1979
1978
6
8
13
1980–1989
1982
8
1986
64
65
1988
98
99
1990–1999
1994
187
1996
196
209
215
218
1998
6
10
227
2000–2009
2000
21
22
36
39
2003
53
54
2004
1A
55
56
57
58
59
60
60A
61
62
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71
2005
73
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2006
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2008
91
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94, 95, 96, and 97
98 and 99
1A
2
3
4
5
6
7
8
9
10
11
12
2009
1A
1B
1C
1D
1E
1F
2010–2019
2010
13
14
15
16
17
19
20
21
22
23
24
25
26
27
2012
29
30
32
34
37
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39
2014
1
2
41
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45
46
47
48
2016
50
51
52
53
54
55
56
57
58
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60
61
62
63
64
65
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67
2018
68
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72
6
7
8
9
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11
12
2020–2029
2020
13
14
15
16
17
18
19
20
21
22
23
24
25
2022
1
26
27
28
29
30
31
2024
1
2
3
4
5
6
32
33
34
35
36
Full list :
Los Angeles CountyLos Angeles County Board of supervisors
1980
1996
2006
2008
2010
2012
2014
2016
2018
2020
2022
2024
Ballot measures
1980
A
2008
R
2012
B
J
2016
M
Elections
2020
2022
2024
Los Angeles Mayor
1896
1898
1900
1902
1904
1906
1909 (sp)
1909
1911
1913
1915
1917
1919
1921
1923
1925
1929
1933
1937
1938
1941
1945
1949
1953
1957
1961
1965
1969
1973
1977
1981
1985
1989
1993
1997
2001
2005
2009
2013
2017
2022
2026
City attorney
2009
Ballot measures
1986
U
2017
S
Elections
2009
2011
2013
2015
2017
2019 (sp)
2020
2022
2023 (sp)
2024
Long Beach Mayor
1994
1998
2002
2006
2010
2014
2018
2022 :
Orange CountyOrange County Board of supervisors
2018
2020
2022
2024
District attorney
2018
Anaheim Mayor
2002
2006
2010
2014
2018
2022
Irvine Mayor
1988
1990
1992
1994
1996
1998
2000
2002
2004
2006
2008
2010
2012
2014
2016
2018
2020
2022
2024
Costa Mesa Municipal
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1968
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1972
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1980
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1984
1986
1988
1990
1992
1994
1996
1998
2000
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2004
2006
2008
2010
2012
2014
2016
2018
2020
2022
2024 :
SacramentoMayor
2000
2004
2008
2012
2016
2020
2024 :
San Diego CountySan Diego County Board of supervisors
2020
San Diego Mayor
1887
1889
1891
1893
1895
1897
1899
1901
1903
1905
1907
1909
1911
1913
1915
1917
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1921
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1925
1927
1929
1931
1932
1935
1939
1943
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1951
1955
1959
1963
1967
1971
1975
1979
1983 (sp)
1984
1986 (sp)
1988
1992
1996
2000
2004
2005 (sp)
2008
2012
2013–14 (sp)
2016
2020
2024
2028
City attorney
2004
2008
2012
2016
2020
City council
2002
2004
2006
2008
2010
2012
2014
2016
2018
2020
2022
2024
Special :
San FranciscoMayor
1901
1903
1905
1907
1909
1911
1931
1935
1939
1943
1947
1951
1955
1959
1963
1967
1971
1975
1979
1983 (recall)
1983
1987
1991
1995
1999
2003
2007
2011
2015
2018 (sp)
2019
2024
District attorney
2019
2022 (recall)
2022 (sp)
2024
Board of supervisors
1977
1996
1998
2000
2002
2004
2006
2008
2010
2012
2014
2016
2018
2020
2022
2024
Board of education
2018
2022 (recall)
Ballot measures
2024
G
Elections
2004
Mar
Nov
2005
2006
Jun
Nov
2007
2008
Feb
Jun
Nov
2009
2010
Jun
Nov
2011
2012
Jun
Nov
2013
2022
Feb :
San JoseMayor
1974
1978
1982
1986
1990
1994
1998
2002
2006
2010
2014
2018
2022
2024 :
Other localities
Bakersfield
Mayoral elections:
2004
2008
2012
2016
2020
2024
Fresno
Mayoral elections:
1996
2000
2004
2008
2012
2016
2020
2024
Oakland
Mayoral elections:
1994
1998
2002
2006
2010
2014
2018
2022
2024
2025
Riverside
Mayoral elections:
1997
2001
2005
2009
2012
2016
2020
2024
San Bernardino
Mayoral elections:
2005
2009
2014
2018
2022
Stockton
Mayoral elections:
2008
2012
2016
2020
2024 :
vte :
The 2018 United States House of Representatives elections in California were held on November 6, 2018, with the primary elections being held on June 5, 2018. Voters elected the 53 U.S. representatives from the state of California, one from each of the state's 53 congressional districts. The elections coincided with the elections of other offices, including a gubernatorial election, other elections to the House of Representatives, elections to the United States Senate, and various state and local elections.
Democrats won in seven congressional districts previously represented by Republicans, all of which voted for Hillary Clinton in 2016. This reduced the California House Republican delegation by half and left the Republican Party with the fewest seats in California since just before the 1946 election cycle.
Republican incumbents Jeff Denham, David Valadao, Steve Knight, Mimi Walters, and Dana Rohrabacher (who had been elected to fifteen terms) were all defeated. Democrats also picked up two open seats previously held by retiring GOP incumbents: thirteen-term incumbent Ed Royce and nine-term incumbent Darrell Issa. The seven Democratic House pickups in California were the most made by the party in the 2018 election cycle.

## Overview
### Statewide

United States House of Representatives elections in California, 2018 Primary election — June 5, 2018 :
| Party | Party | Votes | Percentage | Candidates | Advancing to general | Seats contesting |
| | Democratic | 4,189,103 | 63.55% | 117 | 55 | 52 |
| | Republican | 2,250,074 | 34.13% | 95 | 46 | 45 |
| | No party preference | 95,908 | 1.45% | 24 | 2 | 2 |
| | Green | 38,737 | 0.59% | 10 | 3 | 3 |
| | Libertarian | 11,493 | 0.17% | 6 | 0 | 0 |
| | American Independent | 6,747 | 0.10% | 5 | 0 | 0 |
| | Peace and Freedom | 233 | <0.01% | 1 | 0 | 0 |
| Totals | Totals | 6,592,295 | 100% | 258 | 106 | — |
United States House of Representatives elections in California, 2018 General election — November 6, 2018 :
| Party | Party | Votes | Percentage | Seats before | Seats after | +/– |
| | Democratic | 8,010,445 | 65.74% | 39 | 46 | 7 |
| | Republican | 3,973,396 | 32.61% | 14 | 7 | 7 |
| | Green | 103,459 | 0.85% | 0 | 0 | |
| | No party preference | 97,202 | 0.80% | 0 | 0 | |
| Valid votes | Valid votes | 12,184,522 | 95.85% | — | — | — |
| Invalid votes | Invalid votes | 528,020 | 4.15% | — | — | — |
| Totals | Totals | 12,712,542 | 100.00% | 53 | 53 | — |
| Voter turnout | Voter turnout | 64.54% (registered voters) 50.45% (eligible voters) | 64.54% (registered voters) 50.45% (eligible voters) | | | |
Popular vote
Democratic
65.74%
Republican
32.61%
Green
0.85%
No party preference
0.80% :
House seats
Democratic
86.79%
Republican
13.21% :

### By district

Results of the 2018 United States House of Representatives elections in California by district:
| District | Democratic | Democratic | Republican | Republican | Others | Others | Total | Total | Result |
| District | Votes | % | Votes | % | Votes | % | Votes | % | Result |
| District 1 | 131,548 | 45.11% | 160,046 | 54.89% | 0 | 0.00% | 291,594 | 100.0% | Republican hold |
| District 2 | 243,081 | 77.01% | 72,576 | 22.99% | 0 | 0.00% | 315,657 | 100.0% | Democratic hold |
| District 3 | 134,875 | 58.07% | 97,376 | 41.93% | 0 | 0.00% | 232,251 | 100.0% | Democratic hold |
| District 4 | 156,253 | 45.87% | 184,401 | 54.13% | 0 | 0.00% | 340,654 | 100.0% | Republican hold |
| District 5 | 205,860 | 78.87% | 0 | 0.00% | 55,158 | 21.13% | 261,018 | 100.0% | Democratic hold |
| District 6 | 201,939 | 100.00% | 0 | 0.00% | 0 | 0.00% | 201,939 | 100.0% | Democratic hold |
| District 7 | 155,016 | 55.04% | 126,601 | 44.96% | 0 | 0.00% | 281,617 | 100.0% | Democratic hold |
| District 8 | 0 | 0.00% | 170,785 | 100.00% | 0 | 0.00% | 170,785 | 100.0% | Republican hold |
| District 9 | 113,414 | 56.49% | 87,349 | 43.51% | 0 | 0.00% | 200,763 | 100.0% | Democratic hold |
| District 10 | 115,945 | 52.25% | 105,955 | 47.75% | 0 | 0.00% | 221,900 | 100.0% | Democratic gain |
| District 11 | 204,369 | 74.13% | 71,312 | 25.87% | 0 | 0.00% | 275,681 | 100.0% | Democratic hold |
| District 12 | 275,292 | 86.82% | 41,780 | 13.18% | 0 | 0.00% | 317,072 | 100.0% | Democratic hold |
| District 13 | 260,580 | 88.38% | 0 | 0.00% | 34,257 | 11.62% | 294,837 | 100.0% | Democratic hold |
| District 14 | 211,384 | 79.22% | 55,439 | 20.78% | 0 | 0.00% | 266,823 | 100.0% | Democratic hold |
| District 15 | 177,989 | 72.97% | 65,940 | 27.03% | 0 | 0.00% | 243,929 | 100.0% | Democratic hold |
| District 16 | 82,266 | 57.55% | 60,693 | 42.45% | 0 | 0.00% | 142,959 | 100.0% | Democratic hold |
| District 17 | 159,105 | 75.35% | 52,057 | 24.65% | 0 | 0.00% | 211,162 | 100.0% | Democratic hold |
| District 18 | 225,142 | 74.49% | 77,096 | 25.51% | 0 | 0.00% | 302,238 | 100.0% | Democratic hold |
| District 19 | 162,496 | 73.75% | 57,823 | 26.25% | 0 | 0.00% | 220,319 | 100.0% | Democratic hold |
| District 20 | 183,677 | 81.37% | 0 | 0.00% | 42,044 | 18.63% | 225,721 | 100.0% | Democratic hold |
| District 21 | 57,239 | 50.38% | 56,377 | 49.62% | 0 | 0.00% | 113,616 | 100.0% | Democratic gain |
| District 22 | 105,136 | 47.28% | 117,243 | 52.72% | 0 | 0.00% | 222,379 | 100.0% | Republican hold |
| District 23 | 74,661 | 36.28% | 131,113 | 63.72% | 0 | 0.00% | 205,774 | 100.0% | Republican hold |
| District 24 | 166,550 | 58.56% | 117,881 | 41.44% | 0 | 0.00% | 284,431 | 100.0% | Democratic hold |
| District 25 | 133,209 | 54.37% | 111,813 | 45.63% | 0 | 0.00% | 245,022 | 100.0% | Democratic gain |
| District 26 | 158,216 | 61.94% | 97,210 | 38.06% | 0 | 0.00% | 255,426 | 100.0% | Democratic hold |
| District 27 | 202,636 | 100.00% | 0 | 0.00% | 0 | 0.00% | 202,636 | 100.0% | Democratic hold |
| District 28 | 196,662 | 78.37% | 54,272 | 21.63% | 0 | 0.00% | 250,934 | 100.0% | Democratic hold |
| District 29 | 124,697 | 80.61% | 29,995 | 19.39% | 0 | 0.00% | 154,692 | 100.0% | Democratic hold |
| District 30 | 191,573 | 73.40% | 69,420 | 26.60% | 0 | 0.00% | 260,993 | 100.0% | Democratic hold |
| District 31 | 110,143 | 58.74% | 77,352 | 41.26% | 0 | 0.00% | 187,495 | 100.0% | Democratic hold |
| District 32 | 121,759 | 68.78% | 55,272 | 31.22% | 0 | 0.00% | 177,031 | 100.0% | Democratic hold |
| District 33 | 219,091 | 70.03% | 93,769 | 29.97% | 0 | 0.00% | 312,860 | 100.0% | Democratic hold |
| District 34 | 110,195 | 72.54% | 0 | 0.00% | 41,711 | 27.46% | 151,906 | 100.0% | Democratic hold |
| District 35 | 103,420 | 69.40% | 45,604 | 30.60% | 0 | 0.00% | 149,024 | 100.0% | Democratic hold |
| District 36 | 122,169 | 59.02% | 84,839 | 40.98% | 0 | 0.00% | 207,008 | 100.0% | Democratic hold |
| District 37 | 210,555 | 89.08% | 25,823 | 10.92% | 0 | 0.00% | 236,378 | 100.0% | Democratic hold |
| District 38 | 139,188 | 68.85% | 62,968 | 31.15% | 0 | 0.00% | 202,156 | 100.0% | Democratic hold |
| District 39 | 126,002 | 51.56% | 118,391 | 48.44% | 0 | 0.00% | 244,393 | 100.0% | Democratic gain |
| District 40 | 93,938 | 77.35% | 0 | 0.00% | 27,511 | 22.65% | 121,449 | 100.0% | Democratic hold |
| District 41 | 108,227 | 65.10% | 58,021 | 34.90% | 0 | 0.00% | 166,248 | 100.0% | Democratic hold |
| District 42 | 100,892 | 43.50% | 131,040 | 56.50% | 0 | 0.00% | 231,932 | 100.0% | Republican hold |
| District 43 | 152,272 | 77.67% | 43,780 | 22.33% | 0 | 0.00% | 196,052 | 100.0% | Democratic hold |
| District 44 | 143,322 | 100.00% | 0 | 0.00% | 0 | 0.00% | 143,322 | 100.0% | Democratic hold |
| District 45 | 158,906 | 52.05% | 146,383 | 47.95% | 0 | 0.00% | 305,289 | 100.0% | Democratic gain |
| District 46 | 102,278 | 69.15% | 45,638 | 30.85% | 0 | 0.00% | 147,916 | 100.0% | Democratic hold |
| District 47 | 143,354 | 64.86% | 77,682 | 35.14% | 0 | 0.00% | 221,036 | 100.0% | Democratic hold |
| District 48 | 157,837 | 53.55% | 136,899 | 46.45% | 0 | 0.00% | 294,736 | 100.0% | Democratic gain |
| District 49 | 166,453 | 56.42% | 128,577 | 43.58% | 0 | 0.00% | 295,030 | 100.0% | Democratic gain |
| District 50 | 125,448 | 48.28% | 134,362 | 51.72% | 0 | 0.00% | 259,810 | 100.0% | Republican hold |
| District 51 | 109,527 | 71.20% | 44,301 | 28.80% | 0 | 0.00% | 153,828 | 100.0% | Democratic hold |
| District 52 | 188,992 | 63.85% | 107,015 | 36.15% | 0 | 0.00% | 296,007 | 100.0% | Democratic hold |
| District 53 | 185,667 | 69.07% | 83,127 | 30.93% | 0 | 0.00% | 268,794 | 100.0% | Democratic hold |
| Total | 8,010,445 | 65.74% | 3,973,396 | 32.61% | 200,681 | 1.65% | 12,184,522 | 100.0% | |