119th Congress · CA-21
California's 21st Congressional District
California's 21st Congressional District (CA-21) has a population of 757,752. The median household income is $62,084 and the median age is 31.6.
757,752
Population
850
People / sq mi
$62,084
Median Income
31.6
Median Age
CA-21 covers 891 sq mi of land at 850.2 people per square mile.
Race & Ethnicity
| White | 36.6% |
| Black or African American | 4.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 3.3% |
Economy & Income
$62,084
Median Household Income
$25,675
Per Capita Income
18.6%
Poverty Rate
6.1%
Unemployment
Housing
$308,000
Median Home Value
$1,206
Median Rent
51.6%
Homeownership
Education
73.7%
High School+
16.5%
Bachelor's+
Other California Congressional Districts
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State rankings
Frequently Asked Questions
California's 21st Congressional District (CA-21) has a population of 757,752 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 21st Congressional District is $62,084, with a per capita income of $25,675.
California's 21st Congressional District is 36.6% White, 4.7% Black, 0.0% Asian, and 3.3% Hispanic or Latino, per Census ACS data.
More from California
Data for California's 21st 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.
The this entity record above pulls directly from the U.S. Census Bureau ACS and decennial files. What follows is the per-entity context — how this entity sits in the broader U.S. population demographics distribution and which underlying factors drive the headline numbers.
Every number on this page links back to the U.S. Census Bureau ACS and decennial files; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. states, metros, cities, and ZIPs with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: U.S. Census Bureau ACS, 2026.