Census ACS · California
ZIP Code 91790
ZIP code 91790 is located in California with a population of 44,791. The median household income is $100,142 and the median home value is $695,700.
44,791
Population
$100,142
Median Income
$695,700
Median Home Value
37.6
Median Age
Race & Ethnicity
| White | 22.1% |
| Black | 3.1% |
| Asian | 0.0% |
| Hispanic (any race) | 4.3% |
Male: 49.5% · Female: 50.5%
Economy & Income
$100,142
Median Household Income
$36,557
Per Capita Income
6.8%
Poverty Rate
Housing
$695,700
Median Home Value
$2,253
Median Rent
61.0%
Homeownership
Education
82.5%
High School+
23.4%
Bachelor's Degree+
Nearby ZIP Codes
Largest cities in California
Part of California
Metro areas in California
Frequently Asked Questions
ZIP code 91790 in California has a population of 44,791 according to latest Census ACS data.
The median household income in ZIP 91790 is $100,142. The per capita income is $36,557. The poverty rate is 6.8%.
ZIP code 91790 is located in California.
More from California
Data for ZIP Code Tabulation Area (ZCTA) 91790 from the American Community Survey 5-Year estimates. ZCTAs approximately correspond to USPS ZIP code delivery areas but are built from Census blocks and may not match exactly.
What distinguishes ZIP 91790 is density: among the most densely settled of US ZIP codes, around 7,782 people per square mile. ZIP 91790 is a ZIP code in California with a population of 44,791.
The typical household earns $100,142 a year, above the US median of $78,538. About 6.8% of residents live below the federal poverty level, below the national 12.4%. Real estate commands a premium here — a median home value of $695,700, with typical rent around $2,253.
Roughly 23.4% of adults have a bachelor’s, below the national 35.0%.
That density explains much of the rest of the profile in ZIP 91790: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Source: U.S. Census Bureau ACS, 2026.