California's 51st Congressional District
California · CA-51
California's 51st Congressional District is one of 52 U.S. House districts in California, represented in Congress by Sara Jacobs (Democrat). It is home to roughly 759,155 people, with a median age of 36.7. The population is about 51% White. The median household income is $94,119, and 40% of adults 25 and older hold a bachelor’s degree or higher. In the 2024 presidential election it voted solidly Democratic (D+23).
Representative
Current U.S. House member (source: house.gov).
Geography
CA-51 is shown in red. Click a neighboring district to open it, or zoom out to explore the country.
Covering 593 square miles, CA-51 is the 311th-largest of the 435 congressional districts by land area. With about 1,280 residents per square mile, it is a largely suburban district. Its shape is irregular: the district's Polsby-Popper score of 0.20 ranks 307th of 435 nationally, where 1st is the most compact.
Presidential results
In the 2024 presidential election, 60% of CA-51 voters backed Kamala Harris and 37% Donald Trump — a D+23 margin. That is a 4.0-point shift toward the Republicans from 2020, when the district voted D+27.
Two-party presidential vote by district (source: The Downballot).
Who lives here
The median resident of the district is 36.7 years old; 19.8% of residents are under 18 and 15% are 65 or older. About 17.8% of residents were born outside the United States, and 30.4% speak a language other than English at home.
U.S. Census Bureau, American Community Survey (5-year estimates).
Economy & education
At $94,119, the district's median household income ranks 101st of 435 districts nationwide. The typical owner-occupied home is worth $727,388, and the median rent is $2,020 a month. 11.5% of residents live below the poverty line, and workers average a 27.2-minute commute (16.2% work from home).
U.S. Census Bureau, American Community Survey (5-year estimates).