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California's 18th 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 Zoe Lofgren

Zoe Lofgren

CA · District 18
DemocratRanking Member, House Committee on Science, Space, and Technology
Raised $1,721,916 · 130K followers (office + personal) · missed 0.6% of votes
31.7 years in Congress · Up for reelection: 2026
House Committee on Science, Space, and Technology · House Committee on the Judiciary +3 more
View profile

Cook PVI: D+16

District demographics

MeasureValue
Population766,286
Median household income$103,010
Median age34.9
Bachelor's degree or higher25.2%
White alone17.4%
Black alone2.6%
Hispanic or Latino64.3%
Asian alone11.9%
Unemployment rate5.3%
Population density (per sq mi)168

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.