California's 30th Congressional District
California · CA-30
California's 30th Congressional District is one of 52 U.S. House districts in California, represented in Congress by Laura Friedman (Democrat). It is home to roughly 760,159 people, with a median age of 39.7. The population is about 54% White. The median household income is $89,319, and 50% of adults 25 and older hold a bachelor’s degree or higher. In the 2024 presidential election it voted safely Democratic (D+41).
Representative
Current U.S. House member (source: house.gov).
Geography
CA-30 is shown in red. Click a neighboring district to open it, or zoom out to explore the country.
Covering 396 square miles, CA-30 is the 332nd-largest of the 435 congressional districts by land area. With about 1,920 residents per square mile, it is a largely suburban district. Its shape is irregular: the district's Polsby-Popper score of 0.23 ranks 288th of 435 nationally, where 1st is the most compact.
Presidential results
In the 2024 presidential election, 69% of CA-30 voters backed Kamala Harris and 28% Donald Trump — a D+41 margin. That is a 5.0-point shift toward the Republicans from 2020, when the district voted D+46.
Two-party presidential vote by district (source: The Downballot).
Who lives here
The median resident of the district is 39.7 years old; 14.9% of residents are under 18 and 16.4% are 65 or older. About 35.9% of residents were born outside the United States, and 48.2% speak a language other than English at home.
U.S. Census Bureau, American Community Survey (5-year estimates).
Economy & education
At $89,319, the district's median household income ranks 129th of 435 districts nationwide. The typical owner-occupied home is worth $1,109,418, and the median rent is $2,060 a month. 12.9% of residents live below the poverty line, and workers average a 32.1-minute commute (24.1% work from home).
U.S. Census Bureau, American Community Survey (5-year estimates).