119th Congress · CA-40
California's 40th Congressional District
California's 40th Congressional District (CA-40) has a population of 754,183. The median household income is $132,031 and the median age is 42.4.
754,183
Population
1928
People / sq mi
$132,031
Median Income
42.4
Median Age
CA-40 covers 391 sq mi of land at 1928.0 people per square mile.
Race & Ethnicity
| White | 54.9% |
| Black or African American | 1.8% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.8% |
Economy & Income
$132,031
Median Household Income
$61,266
Per Capita Income
4.7%
Poverty Rate
3.1%
Unemployment
Housing
$933,600
Median Home Value
$2,525
Median Rent
71.4%
Homeownership
Education
93.3%
High School+
50.7%
Bachelor's+
Other California Congressional Districts
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Frequently Asked Questions
California's 40th Congressional District (CA-40) has a population of 754,183 according to the latest Census ACS 5-Year estimates. Each US Congressional District is drawn to be roughly equal in population (~760K people).
The median household income in California's 40th Congressional District is $132,031, with a per capita income of $61,266.
California's 40th Congressional District is 54.9% White, 1.8% Black, 0.0% Asian, and 1.8% Hispanic or Latino, per Census ACS data.
More from California
Data for California's 40th Congressional District (119th Congress) from the American Community Survey 5-Year estimates. Land area from the Census Gazetteer files. Congressional districts are redrawn after each decennial Census; the 119th Congress (current) uses post-2020 boundaries.
Among US congressional districts, California's 40th Congressional District stands out first on household income: a median of $132,031, above the US median of $78,538. With 754,183 residents, California's 40th Congressional District is a congressional district in California.
Earnings sit at the high end: a median household income of $132,031, above the US median of $78,538. The poverty rate, 4.7%, is on the lower side for US congressional districts and below the national 12.4%. Home prices are steep, with the typical property valued at $933,600, with typical rent around $2,525.
Degree attainment is near the top of the range for US congressional districts: 50.7% of adults 25+ hold a bachelor’s, above the 35.0% national rate.
Taken together, the income and housing figures place California's 40th Congressional District firmly in the higher-cost, higher-earning tier of US congressional districts — a profile that tends to track dense job markets and competitive housing.
Source: U.S. Census Bureau ACS, 2026.