California's 12th Congressional District
California · CA-12
California's 12th Congressional District is one of 52 U.S. House districts in California, represented in Congress by Lateefah Simon (Democrat). It is home to roughly 746,452 people, with a median age of 37.9. The population is about 33% White. The median household income is $106,136, and 54% of adults 25 and older hold a bachelor’s degree or higher. In the 2024 presidential election it voted safely Democratic (D+74).
Representative
Current U.S. House member (source: house.gov).
Geography
CA-12 is shown in red. Click a neighboring district to open it, or zoom out to explore the country.
Covering 97 square miles, CA-12 is the 409th-largest of the 435 congressional districts by land area. With about 7,695 residents per square mile, it is a heavily urban district. Its shape is fairly compact: the district's Polsby-Popper score of 0.31 ranks 165th of 435 nationally, where 1st is the most compact.
Presidential results
In the 2024 presidential election, 85% of CA-12 voters backed Kamala Harris and 11% Donald Trump — a D+74 margin. That is a 7.0-point shift toward the Republicans from 2020, when the district voted D+81.
Two-party presidential vote by district (source: The Downballot).
Who lives here
The median resident of the district is 37.9 years old; 18.4% of residents are under 18 and 15.3% are 65 or older. About 26.7% of residents were born outside the United States, and 38.6% speak a language other than English at home.
U.S. Census Bureau, American Community Survey (5-year estimates).
Economy & education
At $106,136, the district's median household income ranks 55th of 435 districts nationwide. The typical owner-occupied home is worth $1,015,106, and the median rent is $2,074 a month. 12.6% of residents live below the poverty line, and workers average a 33.5-minute commute (25% work from home).
U.S. Census Bureau, American Community Survey (5-year estimates).