CA-30 elected a Democrat in 2020.

D+39.0 on 345,464 certified votes. Below: the 2020 result and this district's margin across every cycle on record.

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CA-30 — 2020 result

Source: MIT Election Data + Science Lab, US House returns (party-classified by literal ballot party).

Democratic (D)

240,038

69.5%

Republican (R)

105,426

30.5%

All others

0

0.0%

Margin

D+39.0

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Margin history

CA-30 across every cycle on record. Each year links to its district page.

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Year	Won	Margin	Votes
2024	D	+36.8%	311,659
2022	D	+100.0%	211,068
2020	D	+39.0%	345,464
2018	D	+46.8%	260,993
2016	D	+45.3%	282,604
2014	D	+31.3%	131,883
2012	D	+100.0%	247,851
2010	D	+32.7%	237,747
2008	D	+100.0%	242,792
2006	D	+45.0%	211,734
2004	D	+42.5%	304,147
2002	D	+40.7%	185,593
2000	D	+71.5%	99,920
1998	D	+64.8%	70,671
1996	D	+53.6%	80,590
1994	D	+37.9%	66,425
1992	D	+34.4%	83,543
1990	D	+21.2%	78,083
1988	D	+23.6%	120,644
1986	D	+27.0%	94,985
1984	D	+8.4%	124,333
1982	D	+7.7%	113,082
1980	D	+48.7%	102,735
1978	D	+42.8%	92,752
1976	D	+48.8%	111,270