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California's 23rd district

U.S. House district profile: the sitting representative, 2024 Census demographics (119th-district boundaries), partisan lean, and 2026 race rating.

Representative

Official portrait of Jay Obernolte

Jay Obernolte

CA · District 23
RepublicanChair, Research and Technology
Raised $1,455,868 · 12K followers (office + personal) · missed 3.8% of votes
5.7 years in Congress · Up for reelection: 2026
House Committee on Science, Space, and Technology · House Committee on Energy and Commerce +5 more
View profile

Cook PVI: R+9

District demographics

MeasureValue
Population758,179
Median household income$77,137
Median age36.2
Bachelor's degree or higher22.2%
White alone34.6%
Black alone8.2%
Hispanic or Latino47.3%
Asian alone3.7%
Unemployment rate7.7%
Population density (per sq mi)42

Source: U.S. Census Bureau, 2024 American Community Survey 1-year estimates (tables B01003, B01002, B19013 and related), 119th Congress district boundaries, released September 2025; land area from the 2025 Gazetteer.