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California House District 30 Election Results

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

California House District 30 was held by Democratic after the 2018 general election, a two-party margin of 36.1 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 47,354 42,834 52.5% 5.0 pts
1974 Republican 27,238 30,694 47.0% 6.0 pts
1976 Republican 32,744 39,410 45.4% 9.2 pts
1978 Democratic 41,157 23,348 63.8% 27.6 pts
1980 Democratic 52,233 24,989 67.6% 35.3 pts
1982 Democratic 51,524 0 100.0% 100.0 pts
1984 Democratic 57,397 24,695 69.9% 39.8 pts
1986 Democratic 41,271 20,058 67.3% 34.6 pts
1988 Democratic 57,826 22,861 71.7% 43.3 pts
1990 Democratic 39,414 23,793 62.4% 24.7 pts
1992 Democratic 52,566 28,048 65.2% 30.4 pts
1994 Republican 32,901 35,940 47.8% 4.4 pts
1996 Republican 0 37,024 0.0% 100.0 pts
1998 Democratic 37,058 31,116 54.4% 8.7 pts
2000 Democratic 56,936 29,669 65.7% 31.5 pts
2002 Democratic 26,586 26,320 50.2% 0.5 pts
2004 Democratic 42,953 35,084 55.0% 10.1 pts
2006 Democratic 28,244 26,527 51.6% 3.1 pts
2008 Republican 42,615 43,925 49.2% 1.5 pts
2010 Republican 24,386 37,392 39.5% 21.1 pts
2012 Democratic 79,141 41,932 65.4% 30.7 pts
2014 Democratic 43,431 29,187 59.8% 19.6 pts
2016 Democratic 127,883 0 100.0% 100.0 pts
2018 Democratic 81,662 38,308 68.1% 36.1 pts

Winning Margin Over Time

1972: Democratic margin 5.0 pts 1974: Republican margin 6.0 pts 1976: Republican margin 9.2 pts 1978: Democratic margin 27.6 pts 1980: Democratic margin 35.3 pts 1982: Democratic margin 100.0 pts 1984: Democratic margin 39.8 pts 1986: Democratic margin 34.6 pts 1988: Democratic margin 43.3 pts 1990: Democratic margin 24.7 pts 1992: Democratic margin 30.4 pts 1994: Republican margin 4.4 pts 1996: Republican margin 100.0 pts 1998: Democratic margin 8.7 pts 2000: Democratic margin 31.5 pts 2002: Democratic margin 0.5 pts 2004: Democratic margin 10.1 pts 2006: Democratic margin 3.1 pts 2008: Republican margin 1.5 pts 2010: Republican margin 21.1 pts 2012: Democratic margin 30.7 pts 2014: Democratic margin 19.6 pts 2016: Democratic margin 100.0 pts 2018: Democratic margin 36.1 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 30 at the 2018 election?

Democratic held California House District 30 at the 2018 general election, with a two-party margin of 36.1 points.

Which parties have held California House District 30 since 1972?

Since 1972, California House District 30 has been held by: Democratic, Republican.

What was the closest two-party race on record in California House District 30?

The closest two-party margin on record for California House District 30 was 2002, at just 0.5 percentage points.