Two refinery drums sit amongst trees in the hills of Contra Costa County. The image is in black and white and contained in a light blue circle.

Contra Costa County

Who do these election results impact?

Contra Costa County has a population of 1,156,966 people. The median age is 40.5, the median household income is $120,061 and 45.1% of residents hold a bachelor’s degree or higher. The most populated cities in the county are Concord, Richmond and Antioch. Source: U.S. Census Bureau

U.S. House of Representatives, District 8

Top two candidates advance to general election.

Rudy Recile (R)
John Garamendi (D)(incumbent)
Race called at 8:00 PM PT on March 5, 2024
Associated Press
This percentage is an Associated Press estimate of how much of the vote in an election has been counted. It is informed by turnout in recent elections, details on votes cast in advance and – after polls close – early returns. The estimate may fluctuate as election officials report additional results and AP learns more about how many voters have cast a ballot.

U.S. House of Representatives, District 9

Top two candidates advance to general election.

Josh Harder (D)(incumbent)49.8%
60,396 votes
Kevin Lincoln (R)29.9%
36,346 votes
John McBride (R)12.8%
15,525 votes

Race called at 5:49 PM PT on March 11, 2024
99% of votes countedAssociated Press
This percentage is an Associated Press estimate of how much of the vote in an election has been counted. It is informed by turnout in recent elections, details on votes cast in advance and – after polls close – early returns. The estimate may fluctuate as election officials report additional results and AP learns more about how many voters have cast a ballot.

U.S. House of Representatives, District 10

Top two candidates advance to general election.

Mark DeSaulnier (D)(incumbent)65.5%
121,265 votes
Katherine Piccinini (R)18.8%
34,883 votes
Nolan Chen (R)10.5%
19,459 votes

Race called at 5:02 PM PT on March 8, 2024
99% of votes countedAssociated Press
This percentage is an Associated Press estimate of how much of the vote in an election has been counted. It is informed by turnout in recent elections, details on votes cast in advance and – after polls close – early returns. The estimate may fluctuate as election officials report additional results and AP learns more about how many voters have cast a ballot.

State Senate, District 3

Top two candidates advance to general election.

Thom Bogue (R)27.8%
61,776 votes
Christopher Cabaldon (D)26.5%
59,041 votes
Rozzana Verder-Aliga (D)20.4%
45,546 votes

Race called at 6:24 PM PT on March 14, 2024
99% of votes countedAssociated Press
This percentage is an Associated Press estimate of how much of the vote in an election has been counted. It is informed by turnout in recent elections, details on votes cast in advance and – after polls close – early returns. The estimate may fluctuate as election officials report additional results and AP learns more about how many voters have cast a ballot.

State Senate, District 7

Top two candidates advance to general election.

Jesse Arreguín (D)32.1%
61,837 votes
Jovanka Beckles (D)17.6%
34,025 votes
Dan Kalb (D)14.9%
28,842 votes

Race called at 5:58 PM PT on March 15, 2024
98.78% of votes countedAssociated Press
This percentage is an Associated Press estimate of how much of the vote in an election has been counted. It is informed by turnout in recent elections, details on votes cast in advance and – after polls close – early returns. The estimate may fluctuate as election officials report additional results and AP learns more about how many voters have cast a ballot.

State Senate, District 9

Top two candidates advance to general election.

Tim Grayson (D)
Marisol Rubio (D)
Race called at 8:00 PM PT on March 5, 2024
Associated Press
This percentage is an Associated Press estimate of how much of the vote in an election has been counted. It is informed by turnout in recent elections, details on votes cast in advance and – after polls close – early returns. The estimate may fluctuate as election officials report additional results and AP learns more about how many voters have cast a ballot.

State Assembly, District 11

Top two candidates advance to general election.

Lori Wilson (D)(incumbent)50.1%
50,085 votes
Dave Ennis (R)26.1%
26,074 votes
Wanda Wallis (R)14.6%
14,638 votes

Race called at 6:01 PM PT on March 7, 2024
99% of votes countedAssociated Press
This percentage is an Associated Press estimate of how much of the vote in an election has been counted. It is informed by turnout in recent elections, details on votes cast in advance and – after polls close – early returns. The estimate may fluctuate as election officials report additional results and AP learns more about how many voters have cast a ballot.

State Assembly, District 14

Top two candidates advance to general election.

Buffy Wicks (D)(incumbent)73.5%
78,678 votes
Margot Smith (D)17%
18,251 votes
Utkarsh Jain (R)9.4%
10,068 votes
Race called at 6:30 PM PT on March 14, 2024
99% of votes countedAssociated Press
This percentage is an Associated Press estimate of how much of the vote in an election has been counted. It is informed by turnout in recent elections, details on votes cast in advance and – after polls close – early returns. The estimate may fluctuate as election officials report additional results and AP learns more about how many voters have cast a ballot.

State Assembly, District 15

Top two candidates advance to general election.

Sonia Ledo (R)31.8%
30,946 votes
Anamarie Farias (D)30.3%
29,512 votes
Monica Wilson (D)25.5%
24,775 votes

Race called at 5:19 PM PT on March 13, 2024
99% of votes countedAssociated Press
This percentage is an Associated Press estimate of how much of the vote in an election has been counted. It is informed by turnout in recent elections, details on votes cast in advance and – after polls close – early returns. The estimate may fluctuate as election officials report additional results and AP learns more about how many voters have cast a ballot.

State Assembly, District 16

Top two candidates advance to general election.

Joseph Rubay (R)
Rebecca Bauer-Kahan (D)(incumbent)
Race called at 8:00 PM PT on March 5, 2024
Associated Press
This percentage is an Associated Press estimate of how much of the vote in an election has been counted. It is informed by turnout in recent elections, details on votes cast in advance and – after polls close – early returns. The estimate may fluctuate as election officials report additional results and AP learns more about how many voters have cast a ballot.

Board of Supervisors, District 2

Candidate with majority vote wins seat. If no candidate reaches majority, top two candidates advance to runoff in general election.

Candace Andersen(incumbent)100%
45,776 votes
Updated at 6:45 PM PT on March 28, 2024
Contra Costa County

Board of Supervisors, District 3

Candidate with majority vote wins seat. If no candidate reaches majority, top two candidates advance to runoff in general election.

Diane Burgis(incumbent)100%
25,120 votes
Updated at 6:45 PM PT on March 28, 2024
Contra Costa County

Board of Supervisors, District 5

Candidate with majority vote wins seat. If no candidate reaches majority, top two candidates advance to runoff in general election.

Mike Barbanica38.7%
14,338 votes
Shanelle Scales-Preston35%
12,993 votes
Jelani Killings15.3%
5,683 votes

Updated at 6:45 PM PT on March 28, 2024
Contra Costa County

Measure A

Martinez. Appoint City Clerk. Passes with a majority vote.

Yes65.6%
7,554 votes
No34.3%
3,959 votes
Updated at 6:45 PM PT on March 28, 2024
Contra Costa County

Measure B

Antioch Unified School District. School bond. Passes with 55% vote.

Yes57.8%
10,397 votes
No42.1%
7,574 votes
Updated at 6:45 PM PT on March 28, 2024
Contra Costa County

Measure C

Martinez Unified School District. Parcel tax. Passes with 2/3 vote.

Yes74.9%
6,917 votes
No25%
2,313 votes
Updated at 6:45 PM PT on March 28, 2024
Contra Costa County

Measure D

Moraga School District. School bond. Passes with 55% vote.

Yes67.4%
4,052 votes
No32.5%
1,955 votes
Updated at 6:45 PM PT on March 28, 2024
Contra Costa County
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