California's 10th Congressional District
California · CA-10
California's 10th Congressional District is one of 52 U.S. House districts in California, represented in Congress by Mark DeSaulnier (Democrat). It is home to roughly 753,554 people, with a median age of 41.8. The population is about 48% White. The median household income is $146,172, and 53% of adults 25 and older hold a bachelor’s degree or higher. In the 2024 presidential election it voted safely Democratic (D+34).
Representative
Current U.S. House member (source: house.gov).
Geography
CA-10 is shown in red. Click a neighboring district to open it, or zoom out to explore the country.
Covering 626 square miles, CA-10 is the 306th-largest of the 435 congressional districts by land area. With about 1,204 residents per square mile, it is a largely suburban district. Its shape is fairly compact: the district's Polsby-Popper score of 0.32 ranks 150th of 435 nationally, where 1st is the most compact.
Presidential results
In the 2024 presidential election, 65% of CA-10 voters backed Kamala Harris and 31% Donald Trump — a D+34 margin. That is a 5.0-point shift toward the Republicans from 2020, when the district voted D+39.
Two-party presidential vote by district (source: The Downballot).
Who lives here
The median resident of the district is 41.8 years old; 22.3% of residents are under 18 and 17.8% are 65 or older. About 24.2% of residents were born outside the United States, and 32.2% speak a language other than English at home.
U.S. Census Bureau, American Community Survey (5-year estimates).
Economy & education
At $146,172, the district's median household income ranks 6th of 435 districts nationwide. The typical owner-occupied home is worth $1,014,177, and the median rent is $2,444 a month. 6.7% of residents live below the poverty line, and workers average a 36.7-minute commute (23% work from home).
U.S. Census Bureau, American Community Survey (5-year estimates).