ZIP Code Tabulation Area · California

ZIP Code 91765: Diamond Bar, CA

ZIP Code 91765 (Diamond Bar, Los Angeles County, California) has an estimated 44,502 residents in 15,233 households. The median household income is $105,565, the median home value is $915,100 and the median gross rent is $2,486/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated

Total population

44,502

Margin of error ±921

Median household income

$105,565

Margin of error ±$9,879

Median home value

$915,100

Margin of error ±$18,203

Median gross rent

$2,486/mo

Margin of error ±$120

Median age

46.0 yrs

Margin of error ±1.3 yrs

Mean travel time to work

33.1 min

Margin of error ±2.8 min

How ZIP 91765 compares with California and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 9176546.0 yrsCalifornia37.9 yrsUnited States38.9 yrs

Median household income

ZIP 91765$105,565California$99,122United States$80,734

Per capita income

ZIP 91765$48,949California$49,513United States$44,673

Poverty rate

ZIP 9176510.7%California12.0%United States12.5%

Unemployment rate

ZIP 917655.0%California6.6%United States5.2%

Bachelor's degree or higher

ZIP 9176553.7%California37.1%United States35.7%

Median home value

ZIP 91765$915,100California$734,700United States$332,700

Median gross rent

ZIP 91765$2,486/moCalifornia$2,036/moUnited States$1,413/mo

Owner-occupied homes

ZIP 9176577.5%California55.9%United States65.2%

Mean travel time to work

ZIP 9176533.1 minCalifornia28.7 minUnited States26.4 min

Worked from home

ZIP 9176517.2%California17.2%United States15.1%

All figures for ZIP 91765

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 91765 — ACS 2020–2024 5-year estimates
MeasureZIP 91765Margin of errorCaliforniaUnited States
Total population44,502±92139,287,377334,922,499
Median age46.0 yrs±1.3 yrs37.9 yrs38.9 yrs
Households15,233±52713,548,091129,227,496
Median household income$105,565±$9,879$99,122$80,734
Per capita income$48,949±$2,940$49,513$44,673
Poverty rate10.7%±2.6 pts12.0%12.5%
Unemployment rate5.0%±1.1 pts6.6%5.2%
Bachelor's degree or higher53.7%±2.6 pts37.1%35.7%
Median home value$915,100±$18,203$734,700$332,700
Median gross rent$2,486/mo±$120$2,036/mo$1,413/mo
Owner-occupied homes77.5%±3.2 pts55.9%65.2%
Mean travel time to work33.1 min±2.8 min28.7 min26.4 min
Worked from home17.2%±2.4 pts17.2%15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 91765
GroupZIP 91765CaliforniaUnited States
White alone, not Hispanic or Latino12.1%33.8%57.4%
Black or African American alone, not Hispanic or Latino3.4%5.2%11.9%
American Indian and Alaska Native alone, not Hispanic or Latino0.6%0.3%0.5%
Asian alone, not Hispanic or Latino61.9%15.3%5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino0.2%0.3%0.2%
Some other race alone, not Hispanic or Latino0.5%0.6%0.6%
Two or more races, not Hispanic or Latino3.9%4.4%4.3%
Hispanic or Latino (of any race)17.3%40.2%19.3%

Where ZIP 91765 is

State
California
Main county
Los Angeles County
Largest overlapping place
Diamond Bar (70% of the ZIP's land area)
Land area
18.57 sq mi· about 2,396 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Los Angeles County

91732 El Monte, CA91733 South El Monte, CA91740 Glendora, CA91741 Glendora, CA91744 La Puente, CA91745 Hacienda Heights, CA91746 Industry, CA91748 Rowland Heights, CA91750 La Verne, CA91754 Monterey Park, CA91755 Monterey Park, CA91759 Los Angeles County, CA91766 Pomona, CA91767 Pomona, CA91768 Pomona, CA91770 Rosemead, CA91773 San Dimas, CA91775 East San Gabriel, CA91776 San Gabriel, CA91780 Temple City, CA91789 Walnut, CA91790 West Covina, CA91791 West Covina, CA91792 West Covina, CA

See every ZIP code in California, or compare ZIP 91765 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

  • U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
  • U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
  • Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.