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California House District 45 Election Results

Compiled by EveryElectionResult.com's data team · Last updated 2026-08-30

California House District 45 was held by Democratic after the 2018 general election, a two-party margin of 40.4 points. This page covers every general election on record for this district from 1972 to 2018.

This page covers the state House (lower chamber) general election only, two-party vote totals (Democratic vs. Republican). District lines here are redrawn at least once a decade, so an older and newer election under the same district number don't necessarily cover the same voters -- see the sourcing note below.

Results by Election

ElectionWinning PartyDem. VotesGOP VotesDem. ShareMargin
1972 Democratic 43,575 29,974 59.2% 18.5 pts
1974 Democratic 54,730 29,059 65.3% 30.6 pts
1976 Democratic 68,878 32,555 67.9% 35.8 pts
1978 Democratic 58,243 24,647 70.3% 40.5 pts
1980 Democratic 61,208 26,440 69.8% 39.7 pts
1982 Democratic 59,825 27,832 68.2% 36.5 pts
1984 Democratic 69,480 34,265 67.0% 33.9 pts
1986 Democratic 61,524 24,284 71.7% 43.4 pts
1988 Democratic 78,045 30,789 71.7% 43.4 pts
1990 Democratic 50,494 22,470 69.2% 38.4 pts
1992 Democratic 37,196 15,028 71.2% 42.5 pts
1994 Democratic 29,533 12,702 69.9% 39.9 pts
1996 Democratic 40,332 0 100.0% 100.0 pts
1998 Democratic 40,001 8,666 82.2% 64.4 pts
2000 Democratic 57,092 0 100.0% 100.0 pts
2002 Democratic 40,341 0 100.0% 100.0 pts
2004 Democratic 62,091 19,660 76.0% 51.9 pts
2006 Democratic 45,106 9,082 83.2% 66.5 pts
2008 Democratic 70,869 15,506 82.0% 64.1 pts
2010 Democratic 53,745 10,724 83.4% 66.7 pts
2012 Democratic 100,422 57,996 63.4% 26.8 pts
2014 Democratic 45,321 34,055 57.1% 14.2 pts
2016 Democratic 111,148 56,257 66.4% 32.8 pts
2018 Democratic 106,025 45,050 70.2% 40.4 pts

Winning Margin Over Time

1972: Democratic margin 18.5 pts 1974: Democratic margin 30.6 pts 1976: Democratic margin 35.8 pts 1978: Democratic margin 40.5 pts 1980: Democratic margin 39.7 pts 1982: Democratic margin 36.5 pts 1984: Democratic margin 33.9 pts 1986: Democratic margin 43.4 pts 1988: Democratic margin 43.4 pts 1990: Democratic margin 38.4 pts 1992: Democratic margin 42.5 pts 1994: Democratic margin 39.9 pts 1996: Democratic margin 100.0 pts 1998: Democratic margin 64.4 pts 2000: Democratic margin 100.0 pts 2002: Democratic margin 100.0 pts 2004: Democratic margin 51.9 pts 2006: Democratic margin 66.5 pts 2008: Democratic margin 64.1 pts 2010: Democratic margin 66.7 pts 2012: Democratic margin 26.8 pts 2014: Democratic margin 14.2 pts 2016: Democratic margin 32.8 pts 2018: Democratic margin 40.4 pts 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018

Frequently Asked Questions

Which party held California House District 45 at the 2018 election?

Democratic held California House District 45 at the 2018 general election, with a two-party margin of 40.4 points.

Which parties have held California House District 45 since 1972?

Since 1972, California House District 45 has been held by: Democratic.

What was the closest two-party race on record in California House District 45?

The closest two-party margin on record for California House District 45 was 2014, at just 14.2 percentage points.