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California's 12th Congressional District (CA-12)

Last updated · 6 sources

Lateefah Simon, a Democrat, has represented the district since 2025.

The district includes parts of Alameda and San Francisco counties.

According to the Census Bureau's 2020–2024 American Community Survey 5-year estimates, the district has a population of 748,393, a median household income of $108,648, and a median age of 38. Of residents 25 and older, 54.1% hold a bachelor's degree or higher.

Representative

Official portrait of Lateefah Simon, U.S. Representative for California's 12th District
Lateefah Simon

U.S. Representative for California's 12th District · Democrat

ProfileSchedule this week

2026 redistricting

California uses a new congressional map in 2026: AB 604 (Proposition 50), approved by voters Nov 4, 2025.

The 2026 election for CA-12 uses the new map's CA-12; the map on this page shows the district as currently drawn (119th Congress).

Source · All 2026 redistricting changes

2026 election

Simon has filed with the FEC to run for this seat in 2026. 2 candidates for the seat have reported receipts to the FEC.

2 candidates have reported raising money for the 2026 CA-12 race to the FEC.

Election Day: Tuesday, November 3, 2026

Candidates for CA-12 in 2026 who reported raising money to the FEC
CandidatePartyRaisedCash on handThrough
Lateefah Simon (incumbent)Democratic$1,449,191$777,590Jun 30
Jamie JoyceDemocratic$31,247$8,800Jun 30

Includes primary candidates; FEC filings do not record primary results. FEC race page

District profile

Population
748,393
Median household income
$108,648
Median age
38
Bachelor's degree or higher
54.1%

Census Bureau, 2020–2024 American Community Survey 5-year estimates

California senators

Neighboring districts

  • CA-8 · John Garamendi (D)
  • CA-10 · Mark DeSaulnier (D)
  • CA-14 · Aisha Wahab (D)

Sources