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ZIP 91765 · Diamond Bar

Who lives in ZIP code 91765 (Diamond Bar, CA): age, income, housing, education and work.

Source: uszips 2026 (ACS-based ZIP file)

2026 ZIP profile

Diamond Bar, CA · Los Angeles County

uszips 2026
People44,502
Median age46.0
Household income$105,565
Home value$915,026
Median rent$2,486/mo
Poverty10.7%
College degree+53.7%
Commute33 min

Place

Metro area
Los Angeles-Long Beach-Anaheim, CA
Wider region
Los Angeles-Long Beach, CA
Metro division
Los Angeles-Long Beach-Glendale, CA
Time zone
Pacific
Density
925 / sq mi
Housing units
15,233

County

Los Angeles100%

Share of the ZIP's people in each county.

Age mix

Under 108.2%
10–1912.4%
20s9.7%
30s11.5%
40s13.5%
50s15.9%
60s13.9%
70s10.0%
80+4.8%

21.9% are 65 or older; 81.5% are adults.

Household income

Under $25K12.0%
$25K–50K13.0%
$50K–75K11.8%
$75K–100K11.0%
$100K–150K17.7%
$150K+34.5%

52.2% of households earn $100K+. Median per person: $45,227.

Education (adults 25+)

Less than high school7.9%
High school13.7%
Some college24.6%
Bachelor's34.5%
Graduate19.2%

49.5% of degrees are in STEM fields.

Race

White14.7%
Black3.5%
Asian62.2%
Native American1.0%
Pacific Islander0.2%
Other7.2%
Two or more11.1%

17.3% Hispanic or Latino (of any race).

Households & family

Married
55.2%
Never married
30.5%
Divorced
8.4%
Widowed
5.9%
Family size
3.24
Dual-income families
56.6%

Housing

Own their home
77.5%
Rent burden
42.4%
Men / women
48% / 52%

Work

In labor force
60.7%
Unemployment
5.0%
Self-employed
18.0%
Farmers
0.0%

Community

Charitable givers
37.9%
Veterans
2.2%
With a disability
9.1%
No health insurance
3.3%
Limited English
20.2%

Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.

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