California's 15th Congressional District

California's 15th Congressional District is represented by Kevin Mullin (Democrat), who has held the seat since 2023. Mullin has an overall VoteSee report card grade of F, voted in 93% of roll-call votes on bills this Congress, and votes with the Democratic majority 98% of the time. The district includes San Francisco, San Mateo, and Daly City. It takes in all or part of 2 counties, and 85% of residents live in San Mateo County. About 739,000 people live in the district, and the median household income is $149,727.

Current Representative

Kevin Mullin (Democrat) has represented California's 15th Congressional District since 2023.

VoteSee report card grade: F
Attendance in the 119th Congress: 93% of roll-call votes on bills
Votes with the Democrat majority: 98%

See Kevin Mullin's full voting record and issue positions →

2026 Election

U.S. House: California 15th District

Winner: Kevin Mullin.

Incumbent Kevin Mullin is running for re-election. 2 candidates were on the Nov 3, 2026 ballot.

California uses a top-two primary, so the two November candidates can be from the same party.

Kevin Mullin (Democratic), incumbent: raised $987K, $192K cash on hand; VoteSee report card F; 93% attendance; votes with the Democratic majority 98% of the time
Charles Hoelter (Republican)

Polls: No public polls

See the full 2026 race →

District Demographics

Population: 738,509
Median household income: $149,727
Median age: 41
Median home value: $1,414,500
Bachelor's degree or higher: 49.1%

Source: American Community Survey 2020–2024 5-year estimates, 119th Congress boundaries.

How Mullin Voted Recently

Yea on American Enrichment Deployment Act (Nov 9, 2026) — Passed
Yea on Nuclear REFUEL (Recycling Efficient Fuels Utilizing Expedited Licensing) Act (Nov 9, 2026) — Passed
Yea on Retire through Ownership Act (Sep 16, 2026) — Passed
Yea on Water Resources Development Act of 2026 (Sep 16, 2026) — Passed
Yea on Ratepayer Protection Act (Sep 16, 2026) — Passed

Breaks with the Democrat majority

Yea on Cashless Bail Reporting Act (May 14, 2026) — Passed
Nay on A bill to amend the FISA Amendments Act of 2008 to extend the authorities of title VII of the Foreign Intelligence Surveillance Act of 1978, and for other purposes. (Apr 30, 2026) — Passed
Aye on Incentivizing New Ventures and Economic Strength Through Capital Formation Act of 2025 (Dec 11, 2025) — Passed

Who Held This Seat Before

Members of Congress who previously represented California's 15th Congressional District. District lines are redrawn after each census, so earlier members may have represented a different area under this number.

Eric Swalwell — Democrat (2013–2023)
Mike Honda — Democrat (2001–2013)
Tom Campbell — Republican (1995–2001)
Norman Mineta — Democrat (1993–1995)
Gary Condit — Democrat (1989–1993)
Anthony Coelho — Democrat (1979–1989)
Bernice Sisk — Democrat (1977–1979)
John McFall — Democrat (1963–1975)
Gordon McDonough — Republican (1945–1963)
John Costello — Democrat (1935–1945)
William Traeger — Republican (1933–1935)

Where the District Is

California's 15th Congressional District covers 116 square miles of land. Boundaries are for the current (119th) Congress.

Counties

San Mateo County (part): 85% of residents
San Francisco County (part): 15% of residents

Largest communities

San Francisco (part)
San Mateo
Daly City
Redwood City
South San Francisco
San Bruno
Foster City
Burlingame