Census ACS · California
ZIP Code 91766
ZIP code 91766 is located in California with a population of 68,673. The median household income is $77,699 and the median home value is $568,300.
68,673
Population
$77,699
Median Income
$568,300
Median Home Value
34.9
Median Age
Race & Ethnicity
| White | 21.1% |
| Black | 5.1% |
| Asian | 0.0% |
| Hispanic (any race) | 3.5% |
Male: 50.6% · Female: 49.4%
Economy & Income
$77,699
Median Household Income
$27,518
Per Capita Income
10.4%
Poverty Rate
Housing
$568,300
Median Home Value
$1,776
Median Rent
53.4%
Homeownership
Education
70.9%
High School+
19.9%
Bachelor's Degree+
Nearby ZIP Codes
Largest cities in California
Part of California
Metro areas in California
Frequently Asked Questions
ZIP code 91766 in California has a population of 68,673 according to latest Census ACS data.
The median household income in ZIP 91766 is $77,699. The per capita income is $27,518. The poverty rate is 10.4%.
ZIP code 91766 is located in California.
More from California
Data for ZIP Code Tabulation Area (ZCTA) 91766 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 91766 is density: among the most densely settled of US ZIP codes, around 6,801 people per square mile. ZIP 91766 is a ZIP code in California with a population of 68,673.
The typical household here earns about $77,699, near the US median of $78,538. The poverty rate is 10.4%, below the national 12.4%. Real estate commands a premium here — a median home value of $568,300, with typical rent around $1,776.
Degree attainment is mid-range for US ZIP codes: 19.9% of adults hold a four-year degree, below the national 35.0%.
That density explains much of the rest of the profile in ZIP 91766: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Source: U.S. Census Bureau ACS, 2026.