91765 ZIP Code
Diamond Bar, California
December 30, 2025
| ZIP Code: | 91765 |
| City/Town: | Diamond Bar |
| County: | Los Angeles |
| State: | California |
| ZIP Type: | Standard |
| Population: | 45,303 |
| Median Household Income: | $105,712 |
| Per Capita Income: | $51,138 |
| Total Housing Units: | 15,756 |
| Median Home Value: | $839,700 |
| Land Area: | 18.6 sq miles
48.1 sq km |
| Water Area: | 0.0 sq miles
0.0 sq km |
| Coordinates: | 33.9852, -117.8120 |
Population Information (91765 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total Population: | 45,303 | -- | -- |
| Male: | 21,741 | 48.0% | 49.6% |
| Female: | 23,562 | 52.0% | 50.4% |
| Median Age: | 44.9 yrs | -- | 38.5 yrs |
| Under 5 years: | 1,938 | 4.3% | 5.7% |
| 5 to 9 years: | 2,068 | 4.6% | 6.0% |
| 10 to 14 years: | 3,064 | 6.8% | 6.5% |
| 15 to 19 years: | 2,886 | 6.4% | 6.6% |
| 20 to 24 years: | 2,017 | 4.5% | 6.7% |
| 25 to 34 years: | 5,459 | 12.0% | 13.7% |
| 35 to 44 years: | 5,263 | 11.6% | 12.9% |
| 45 to 54 years: | 6,880 | 15.2% | 12.4% |
| 55 to 59 years: | 4,121 | 9.1% | 6.5% |
| 60 to 64 years: | 2,983 | 6.6% | 6.4% |
| 65 to 74 years: | 5,470 | 12.1% | 9.7% |
| 75 to 84 years: | 2,124 | 4.7% | 4.8% |
| 85 years and over: | 1,030 | 2.3% | 2.0% |
Housing Information (91765 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Median home value: | $839,700 | -- | $281,900 |
| Median rooms: | 6.2 | -- | 5.5 |
| Median rent: | $2,310 / mo. | -- | $1,268 / mo. |
| Total housing units: | 15,756 | -- | -- |
| Occupied housing units: | 15,081 | 95.7% | 38.0% |
| Vacant housing units: | 675 | 4.3% | 4.6% |
| Housing tenure: | -- | -- | -- |
| Owner-occupied: | 11,633 | 77.1% | 64.8% |
| Renter-occupied: | 3,448 | 22.9% | 35.2% |
Educational Attainment (91765 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Population 25 years and over: | 33,330 | -- | -- |
| Less than 9th grade: | 1,369 | 4.1% | 4.7% |
| 9th to 12th grade, no diploma: | 1,058 | 3.2% | 6.1% |
| High school graduate: | 4,672 | 14.0% | 26.4% |
| Some college, no degree: | 5,837 | 17.5% | 19.7% |
| Associate degree: | 2,920 | 8.8% | 8.7% |
| Bachelor's degree: | 11,219 | 33.7% | 20.9% |
| Graduate or professional degree: | 6,255 | 18.8% | 13.7% |
| Percent high school graduate or higher: | -- | 92.7% | 89.1% |
| Percent bachelor's degree or higher: | -- | 52.4% | 34.3% |
Income Information (91765 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median household income: | $105,712 / yr. | $75,149 / yr. |
| Mean household income: | $134,884 / yr. | $105,833 / yr. |
| Median family income: | $116,288 / yr. | $92,646 / yr. |
| Per capita income: | $51,138 / yr. | $41,261 / yr. |
Employment (91765 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| In labor force: | 23,294 | -- | 63.5% |
| Employed: | 22,022 | 94.6% | 96.4% |
| Unemployed: | 1,245 | 5.4% | 5.3% |
| Not in labor force: | 14,467 | -- | -- |
| Class of Worker: | -- | -- | -- |
| Private wage and salary: | 17,148 | 77.9% | 79.7% |
| Government workers: | 3,109 | 14.1% | 14.2% |
| Self-employed: | 1,732 | 7.9% | 5.9% |
| Unpaid family workers: | 33 | 0.1% | 0.1% |
Race & Ethnicity (91765 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Race (one race): | -- | -- | -- |
| White: | 9,824 | 21.7% | 61.6% |
| Black or African American: | 1,790 | 4.0% | 12.4% |
| American Indian/Alaska Native: | 470 | 1.0% | 1.1% |
| Asian: | 26,454 | 58.4% | 6.0% |
| Native Hawaiian/Pacific Islander: | 64 | 0.1% | 0.2% |
| Some other race: | 3,171 | 7.0% | 8.4% |
| Two or more races: | 3,530 | 7.8% | 10.2% |
| Hispanic or Latino (any race): | 4,991 | 11.0% | 18.7% |
| Mexican: | 8,457 | 18.7% | 11.2% |
| Puerto Rican: | 5,916 | 13.1% | 1.8% |
| Cuban: | 79 | 0.2% | 0.7% |
| Other Hispanic or Latino: | 291 | 0.6% | 5.0% |
| Not Hispanic or Latino: | 2,171 | 4.8% | 81.1% |
Income Distribution (91765 zip code)
| Household Income | Households | Percent% | US AvgUS |
|---|---|---|---|
| Less than $10,000: | 862 | 5.7% | 4.9% |
| $10,000 to $14,999: | 248 | 1.6% | 3.8% |
| $15,000 to $24,999: | 705 | 4.7% | 7.0% |
| $25,000 to $34,999: | 864 | 5.7% | 7.4% |
| $35,000 to $49,999: | 953 | 6.3% | 10.7% |
| $50,000 to $74,999: | 2,016 | 13.4% | 16.1% |
| $75,000 to $99,999: | 1,619 | 10.7% | 12.8% |
| $100,000 to $149,999: | 2,908 | 19.3% | 17.1% |
| $150,000 to $199,999: | 1,827 | 12.1% | 8.8% |
| $200,000 or more: | 3,079 | 20.4% | 11.4% |
Commute to Work (91765 zip code)
| Commute Method | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Drove alone: | 15,864 | 72.0% | 67.8% |
| Carpooled: | 1,951 | 8.9% | 8.7% |
| Public transportation: | 395 | 1.8% | 4.2% |
| Walked: | 126 | 0.6% | 2.5% |
| Other means: | 125 | 0.6% | 0.9% |
| Worked from home: | 2,980 | 13.5% | 13.8% |
| Mean travel time to work: | 34.4 min | -- | 26.7 min |
Industry (91765 zip code)
| Industry Sector | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Agriculture, forestry, fishing, mining: | 71 | 0.3% | 1.6% |
| Construction: | 811 | 3.7% | 6.9% |
| Manufacturing: | 1,755 | 8.0% | 10.0% |
| Wholesale trade: | 1,528 | 6.9% | 2.4% |
| Retail trade: | 2,502 | 11.4% | 11.0% |
| Transportation, warehousing, utilities: | 1,399 | 6.4% | 5.8% |
| Information: | 358 | 1.6% | 1.9% |
| Finance, insurance, real estate: | 2,047 | 9.3% | 6.7% |
| Professional, scientific, management: | 2,976 | 13.5% | 12.1% |
| Education, health care, social services: | 4,937 | 22.4% | 23.3% |
| Arts, entertainment, food services: | 1,920 | 8.7% | 9.0% |
| Other services: | 670 | 3.0% | 4.7% |
| Public administration: | 1,048 | 4.8% | 4.7% |
Poverty Status (91765 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Poverty Rate: | -- | 9.7% | 8.8% |
| All people below poverty level: | -- | -- | -- |
| Under 18 years: | -- | -- | 16.3% |
| 18 to 64 years: | -- | -- | 11.0% |
| 65 years and over: | -- | -- | 10.3% |
Health Insurance (91765 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| With health insurance: | 43,505 | 96.0% | 91.3% |
| Private health insurance: | 33,075 | 73.0% | 67.6% |
| Public health coverage: | 14,639 | 32.3% | 35.9% |
| Without health insurance: | 1,728 | 3.8% | 8.7% |
Benefits & Assistance (91765 zip code)
| Households with: | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Earnings: | 12,084 | 80.1% | 77.4% |
| Social Security income: | 5,088 | 33.7% | 31.0% |
| Retirement income: | 3,383 | 22.4% | 21.8% |
| Supplemental Security Income (SSI): | 604 | 4.0% | 4.5% |
| Cash public assistance income: | 341 | 2.3% | 1.8% |
| SNAP (food stamps) benefits: | 683 | 4.5% | 11.4% |
Housing Types (91765 zip code)
| Structure Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| 1-unit, detached: | 11,055 | 70.2% | 61.4% |
| 1-unit, attached: | 2,013 | 12.8% | 6.1% |
| 2 units: | 72 | 0.5% | 3.4% |
| 3 or 4 units: | 633 | 4.0% | 4.3% |
| 5 to 9 units: | 644 | 4.1% | 4.6% |
| 10 to 19 units: | 414 | 2.6% | 4.3% |
| 20 or more units: | 901 | 5.7% | 9.9% |
| Mobile home: | 15 | 0.1% | 5.8% |
| Boat, RV, van, etc.: | 9 | 0.1% | 0.1% |
Year Structure Built (91765 zip code)
| Year Built | Units | Percent% | US AvgUS |
|---|---|---|---|
| Built 2020 or later: | 0 | 0.0% | 0.6% |
| Built 2010 to 2019: | 201 | 1.3% | 8.2% |
| Built 2000 to 2009: | 403 | 2.6% | 13.5% |
| Built 1990 to 1999: | 657 | 4.2% | 13.2% |
| Built 1980 to 1989: | 6,039 | 38.3% | 13.2% |
| Built 1970 to 1979: | 5,150 | 32.7% | 14.6% |
| Built 1960 to 1969: | 2,802 | 17.8% | 10.2% |
| Built 1950 to 1959: | 345 | 2.2% | 9.9% |
| Built 1940 to 1949: | 64 | 0.4% | 4.6% |
| Built 1939 or earlier: | 95 | 0.6% | 12.0% |
Bedrooms (91765 zip code)
| Number of Bedrooms | Units | Percent% | US AvgUS |
|---|---|---|---|
| No bedroom (studio): | 421 | 2.7% | 2.4% |
| 1 bedroom: | 565 | 3.6% | 3.0% |
| 2 bedrooms: | 2,551 | 16.2% | 9.1% |
| 3 bedrooms: | 4,369 | 27.7% | 15.9% |
| 4 bedrooms: | 6,238 | 39.6% | 18.8% |
| 5 or more bedrooms: | 1,612 | 10.2% | 17.6% |
Heating Fuel (91765 zip code)
| Fuel Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| Utility gas: | 12,030 | 79.8% | 47.1% |
| Bottled, tank, or LP gas: | 227 | 1.5% | 4.9% |
| Electricity: | 2,605 | 17.3% | 40.2% |
| Fuel oil, kerosene, etc.: | 0 | 0.0% | 4.2% |
| Coal or coke: | 0 | 0.0% | 0.1% |
| Wood: | 0 | 0.0% | 1.5% |
| Solar energy: | 115 | 0.8% | 0.1% |
| Other fuel: | 0 | 0.0% | 0.5% |
| No fuel used: | 104 | 0.7% | 0.2% |
Vehicles Available (91765 zip code)
| Vehicles | Households | Percent% | US AvgUS |
|---|---|---|---|
| No vehicle available: | 358 | 2.4% | 8.3% |
| 1 vehicle available: | 3,434 | 22.8% | 32.6% |
| 2 vehicles available: | 6,322 | 41.9% | 37.0% |
| 3 or more vehicles available: | 4,967 | 32.9% | 22.1% |
Home Value Distribution (91765 zip code)
| Value Range | Owner Units | Percent% | US AvgUS |
|---|---|---|---|
| Less than $50,000: | 82 | 0.7% | 5.7% |
| $50,000 to $99,999: | 46 | 0.4% | 7.8% |
| $100,000 to $149,999: | 55 | 0.5% | 9.2% |
| $150,000 to $199,999: | 6 | 0.1% | 10.8% |
| $200,000 to $299,999: | 44 | 0.4% | 19.9% |
| $300,000 to $499,999: | 1,264 | 10.9% | 24.1% |
| $500,000 to $999,999: | 7,129 | 61.3% | 17.0% |
| $1,000,000 or more: | 3,007 | 25.8% | 5.6% |
Housing Costs (91765 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median owner costs (with mortgage): | $2,971 / mo. | $1,828 / mo. |
| Median owner costs (no mortgage): | $862 / mo. | $584 / mo. |
| Median gross rent: | $2,310 / mo. | $1,268 / mo. |
| Average household size (owner-occupied): | 2.99 | 2.53 |
| Average household size (renter-occupied): | 2.98 | 2.38 |
Households (91765 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total households: | 15,081 | -- | -- |
| Married-couple households: | 9,454 | 62.7% | 47.5% |
| Cohabiting couple households: | 3,525 | 23.4% | 7.0% |
| Male householder, no spouse: | 1,645 | 10.9% | 5.4% |
| Female householder, no spouse: | 3,542 | 23.5% | 12.7% |
| Householder living alone: | 4,837 | 32.1% | 28.6% |
| 65 years and over living alone: | 5,943 | 39.4% | 11.8% |
| Average household size: | 2.99 | -- | 2.53 |
| Average family size: | 3.33 | -- | -- |
Marital Status (91765 zip code)
| Population 15 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 18,205 | -- | -- |
| Never married: | 6,068 | 33.3% | 37.0% |
| Now married: | 10,726 | 58.9% | 49.5% |
| Separated: | 312 | 1.7% | 1.5% |
| Widowed: | 1,046 | 5.7% | 2.6% |
| Divorced: | 5,339 | 29.3% | 9.3% |
School Enrollment (91765 zip code)
| Population 3 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Enrolled in school: | 11,662 | -- | -- |
| Nursery school, preschool: | 467 | 4.0% | 5.8% |
| Kindergarten: | 383 | 3.3% | 5.0% |
| Elementary school (grades 1-8): | 4,190 | 35.9% | 40.5% |
| High school (grades 9-12): | 2,221 | 19.0% | 21.4% |
| College or graduate school: | 4,401 | 37.7% | 27.3% |
Veterans & Disability (91765 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Civilian population 18 years and over: | 36,471 | -- | -- |
| Veterans: | 1,028 | 2.8% | 6.3% |
| Civilian noninstitutionalized population: | 45,233 | -- | -- |
| With a disability: | 3,977 | 8.8% | 13.4% |
| Under 18 with disability: | 333 | 8.4% | 5.8% |
| 18 to 64 with disability: | 1,523 | 38.3% | 10.4% |
| 65 and over with disability: | 2,121 | 53.3% | 33.4% |
Mobility (Residence 1 Year Ago) (91765 zip code)
| Population 1 year and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Same house: | 40,824 | 90.1% | 86.9% |
| Different house: | 4,138 | 9.1% | 13.1% |
| Same county: | 1,911 | 46.2% | 7.0% |
| Different county: | 1,503 | 36.3% | 3.2% |
| Different state: | 606 | 14.6% | 2.5% |
| Abroad: | 724 | 17.5% | 0.4% |
Place of Birth (91765 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Native born: | 25,016 | 55.2% | 86.2% |
| Foreign born: | 589 | 1.3% | 13.9% |
| Naturalized citizen: | 20,287 | 3444.3% | 52.7% |
| Not a citizen: | 20,287 | 3444.3% | 47.3% |
| Foreign-born by region: | -- | -- | -- |
| Europe: | 20,287 | 3444.3% | 10.5% |
| Asia: | 194 | 32.9% | 31.3% |
| Africa: | 175 | 29.7% | 5.5% |
| Oceania: | 7 | 1.2% | 0.5% |
| Latin America: | 1,695 | 287.8% | 50.0% |
| Northern America: | 110 | 18.7% | 2.2% |
Language Spoken at Home (91765 zip code)
| Population 5 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 43,365 | -- | -- |
| English only: | 17,908 | 41.3% | 78.3% |
| Language other than English: | 25,457 | 58.7% | 21.5% |
| By language: | -- | -- | -- |
| Spanish: | 4,052 | 9.3% | 13.3% |
| Other Indo-European languages: | 1,755 | 4.0% | 3.5% |
| Asian/Pacific Island languages: | 19,207 | 44.3% | 3.5% |
| Other languages: | 443 | 1.0% | 1.0% |
Computers & Internet (91765 zip code)
| Households | Percent% | US AvgUS | |
|---|---|---|---|
| Households with a computer: | 15,081 | 100.0% | 93.1% |
| Households with broadband internet: | 14,803 | 98.2% | 89.4% |
Diamond Bar, CA91765