California's 48th Congressional District
California · CA-48
California's 48th Congressional District is one of 52 U.S. House districts in California, represented in Congress by Darrell Issa (Republican). It is home to roughly 756,939 people, with a median age of 38.3. The population is about 42% White. The median household income is $91,203, and 31% of adults 25 and older hold a bachelor’s degree or higher. In the 2024 presidential election it voted solidly Republican (R+15).
Representative
Current U.S. House member (source: house.gov).
Geography
CA-48 is shown in red. Click a neighboring district to open it, or zoom out to explore the country.
By the Polsby-Popper measure, CA-48 is very irregular in shape compared with other districts.
Presidential results
Two-party presidential vote by district (source: The Downballot).
Who lives here
U.S. Census Bureau, American Community Survey (5-year estimates).
Economy & education
U.S. Census Bureau, American Community Survey (5-year estimates).