California's 3rd Congressional District
California · CA-03
California's 3rd Congressional District is one of 52 U.S. House districts in California, represented in Congress by Kevin Kiley (Independent). It is home to roughly 775,082 people, with a median age of 40.8. The population is about 57% White. The median household income is $90,947, and 38% of adults 25 and older hold a bachelor’s degree or higher. In the 2024 presidential election the district was highly competitive (R+4).
Representative
Current U.S. House member (source: house.gov).
Geography
CA-03 is shown in red. Click a neighboring district to open it, or zoom out to explore the country.
Covering 3,568 square miles, CA-03 is the 184th-largest of the 435 congressional districts by land area. With about 217 residents per square mile, it is a mix of small cities, suburbs and countryside. Its shape is irregular: the district's Polsby-Popper score of 0.28 ranks 215th of 435 nationally, where 1st is the most compact.
Presidential results
In the 2024 presidential election, 47% of CA-03 voters backed Kamala Harris and 50% Donald Trump — a R+4 margin, the 31st-closest result of any district in the country. That is a 2.0-point shift toward the Republicans from 2020, when the district voted R+2.
Two-party presidential vote by district (source: The Downballot).
Who lives here
The median resident of the district is 40.8 years old; 21.4% of residents are under 18 and 19.1% are 65 or older. About 16.6% of residents were born outside the United States, and 24.3% speak a language other than English at home.
U.S. Census Bureau, American Community Survey (5-year estimates).
Economy & education
At $90,947, the district's median household income ranks 119th of 435 districts nationwide. The typical owner-occupied home is worth $571,665, and the median rent is $1,628 a month. 12.2% of residents live below the poverty line, and workers average a 27.6-minute commute (18.8% work from home).
U.S. Census Bureau, American Community Survey (5-year estimates).