Zip code 91765: Diamond Bar, California

Q: What city is zip code 91765?

91765 is assigned to Diamond Bar, California. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 91765 in?

91765 is in Los Angeles County, California.

Q: What is the population of 91765?

About 44,502 people live in 91765, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 91765?

The median household income in 91765 is $105,565.

Q: What zip codes are near 91765?

The closest zip codes to 91765 are 91789, 91788, 92823, 92821, 91766.

Residential delivery areaLos Angeles CountyPacific Time

Population

44,502

Median household income

$106K

U.S. $81K

Median home value

$915K

U.S. $333K

Median rent

$2,486/mo

U.S. $1,413

Median age

U.S. 38.9

Land area

19 sq mi

2,397 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 91765

91765 is a suburban zip code in Diamond Bar, California (Los Angeles County), covering 19 sq mi of land. About 44,502 people live here, or 2,397 per square mile. The median resident is 46 years old, compared with 38.9 nationally.

The median household earns $105,565 a year, 31% above the national median of $80,734. 10.7% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $915,100, or 8.7 years of median household income (U.S.: 4.1 years), which makes homes relatively expensive for local earners. 78% of occupied homes are lived in by their owners, and renters pay a median of $2,486 a month.

54% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 33.1 minutes each way, and 17% of workers work from home. The most common jobs among working residents are in healthcare, management and sales. 15% of them are self-employed (U.S.: 10%). 74% of households speak a language other than English at home, most often an Asian or Pacific Island language.

How 91765 compares

Sorted from highest to lowest national percentile

Foreign-born residents47.5%
98th
U.S. 14.1% · CA 27%66th of 1,688 in CA
Rent-burdened renters67.9%
96th
WeaknessU.S. 51.1% · CA 55.3%179th of 1,610 in CA
Median gross rent$2,486
95th
U.S. $1,413 · CA $2,036317th of 1,464 in CA
Median home value$915,100
94th
U.S. $332,700 · CA $734,700455th of 1,586 in CA
Healthcare workers14%
92nd
U.S. 9.7% · CA 9.4%146th of 1,678 in CA
Self-employed workers15%
90th
U.S. 10% · CA 11.4%504th of 1,678 in CA
Median age46
89th
U.S. 38.9 · CA 37.9410th of 1,687 in CA
Average commute33.1 min
87th
WeaknessU.S. 26.4 min · CA 28.7 min305th of 1,584 in CA
Bachelor's degree or higher53.7%
83rd
StrengthU.S. 35.7% · CA 37.1%366th of 1,687 in CA
Residents 65 and older21.9%
83rd
U.S. 17.2% · CA 15.7%494th of 1,688 in CA
Broadband access95.7%
82nd
StrengthU.S. 91% · CA 93.5%472nd of 1,662 in CA
Median household income$105,565
76th
U.S. $80,734 · CA $99,122594th of 1,575 in CA
Median earnings per worker$60,212
75th
U.S. $49,666 · CA $52,643605th of 1,658 in CA
Population44,502
74th
U.S. 334,922,499 · CA 39,287,377314th of 1,688 in CA
Homeownership rate77.5%
73rd
U.S. 65.2% · CA 55.9%357th of 1,662 in CA
Income inequality (Gini)0.466
73rd
U.S. 0.483 · CA 0.489534th of 1,651 in CA
Per capita income$48,949
70th
U.S. $44,673 · CA $49,513692nd of 1,685 in CA
Work from home17.2%
69th
U.S. 15.1% · CA 17.2%737th of 1,680 in CA
Tech workers4.1%
69th
U.S. 3.8% · CA 4.4%475th of 1,678 in CA
Diversity index56.9
65th
U.S. 61.4 · CA 69.7753rd of 1,688 in CA
Government workers15.4%
62nd
U.S. 14.5% · CA 14.8%809th of 1,678 in CA
Population density2,397/sq mi
61st
U.S. 95/sq mi · CA 252/sq mi696th of 1,688 in CA
Unemployment rate5%
52nd
U.S. 5.2% · CA 6.6%1,111th of 1,681 in CA
Poverty rate10.7%
49th
U.S. 12.5% · CA 12%823rd of 1,666 in CA
Housing vacancy5.3%
36th
U.S. 10.1% · CA 7.5%1,018th of 1,664 in CA
Residents under 1818.5%
21st
U.S. 22% · CA 22%1,073rd of 1,688 in CA
Uninsured rate3.3%
15th
StrengthU.S. 8.4% · CA 6.6%1,226th of 1,675 in CA
Veterans2.2%
8th
U.S. 6.2% · CA 4.3%1,379th of 1,686 in CA

Measure	91765	Los Angeles	CA	U.S.	National percentile	Rank in CA
Foreign-born residents	47.5%	33.4%	27%	14.1%	98th	66th of 1,688
Rent-burdened rentersWeakness	67.9%	57.7%	55.3%	51.1%	96th	179th of 1,610
Median gross rent	$2,486	$1,954	$2,036	$1,413	95th	317th of 1,464
Median home value	$915,100	$834,200	$734,700	$332,700	94th	455th of 1,586
Healthcare workers	14%	9.5%	9.4%	9.7%	92nd	146th of 1,678
Self-employed workers	15%	13.5%	11.4%	10%	90th	504th of 1,678
Median age	46	38.2	37.9	38.9	89th	410th of 1,687
Average commuteWeakness	33.1 min	30.4 min	28.7 min	26.4 min	87th	305th of 1,584
Bachelor's degree or higherStrength	53.7%	36%	37.1%	35.7%	83rd	366th of 1,687
Residents 65 and older	21.9%	15.2%	15.7%	17.2%	83rd	494th of 1,688
Broadband accessStrength	95.7%	93%	93.5%	91%	82nd	472nd of 1,662
Median household income	$105,565	$90,112	$99,122	$80,734	76th	594th of 1,575
Median earnings per worker	$60,212	$48,343	$52,643	$49,666	75th	605th of 1,658
Population	44,502	9,808,667	39,287,377	334,922,499	74th	314th of 1,688
Homeownership rate	77.5%	45.9%	55.9%	65.2%	73rd	357th of 1,662
Income inequality (Gini)	0.466	0.498	0.489	0.483	73rd	534th of 1,651
Per capita income	$48,949	$45,792	$49,513	$44,673	70th	692nd of 1,685
Work from home	17.2%	17.1%	17.2%	15.1%	69th	737th of 1,680
Tech workers	4.1%	2.8%	4.4%	3.8%	69th	475th of 1,678
Diversity index	56.9	67.5	69.7	61.4	65th	753rd of 1,688
Government workers	15.4%	13%	14.8%	14.5%	62nd	809th of 1,678
Population density	2,397/sq mi	2,416/sq mi	252/sq mi	95/sq mi	61st	696th of 1,688
Unemployment rate	5%	7.3%	6.6%	5.2%	52nd	1,111th of 1,681
Poverty rate	10.7%	13.7%	12%	12.5%	49th	823rd of 1,666
Housing vacancy	5.3%	6.4%	7.5%	10.1%	36th	1,018th of 1,664
Residents under 18	18.5%	20.6%	22%	22%	21st	1,073rd of 1,688
Uninsured rateStrength	3.3%	8.2%	6.6%	8.4%	15th	1,226th of 1,675
Veterans	2.2%	2.7%	4.3%	6.2%	8th	1,379th of 1,686

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

15%

5–17

18–24

12%

25–34

11%

35–44

15%

45–54

15%

55–64

13%

65–74

75+

Median age

Under 18

18.5%

65 and over

21.9%

Race and ethnicity

White12%
Black3%
Hispanic17%
Asian62%
Native American0.6%
Pacific Islander0.2%
Other0.5%
Multiracial4%

Diversity index

56.9

U.S. 61.4

Foreign-born

47.5%

U.S. 14.1%

Born in state

44.2%

Language spoken at home (households)

English only

26%

Spanish

11%

Other Indo-European

Asian / Pacific

56%

Other

Households

Households: 15,233
Average household size: 2.9
Family households: 78.8%
Married couples: 60.2%
Living alone: 16.8%
Veterans (of adults): 2.2%
Male / female: 48% / 52%

Income and poverty

Household income distribution

<$25k

12%

$25–50k

13%

$50–75k

12%

$75–100k

11%

$100–150k

18%

$150–200k

13%

$200k+

22%

Median household income

91765

$105,565

Los Angeles Co.

$90,112

California

$99,122

United States

$80,734

Per capita income

$48,949

U.S. $44,673

Poverty rate

10.7%

U.S. 12.5%

Households earning $150K+

34.5%

U.S. 23%

Income inequality (Gini)

0.466

U.S. 0.483

Housing

Median home value

91765

$915,100

Los Angeles Co.

$834,200

California

$734,700

United States

$332,700

Median gross rent

91765

$2,486

Los Angeles Co.

$1,954

California

$2,036

United States

$1,413

Types of housing

Single-family

82%

2–4 units

5–19 units

20+ units

Mobile home

0.2%

Boat, RV, van

Housing units: 16,078
Owner-occupied: 77.5%
Vacant: 5.3%
Median year built: 1980
Median rooms: 6.1
Renters paying 30%+ of income: 67.9%
Renters paying 50%+ of income: 42.5%
Home value to income: 8.7× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

72%

Carpooled

Transit

Walked

0.1%

Bicycle

0.3%

Worked from home

17%

Other

0.4%

Commute time (one way)

<10 min

10–19

20%

20–29

19%

30–44

29%

45–59

12%

60+

15%

Average commute

33.1 min

U.S. 26.4 min

Unemployment

U.S. 5.2%

In labor force

60.7%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Healthcare

14%

Management

13%

Sales

11%

Office and admin

10%

Business and finance

10%

Engineering and science

Education

Food service

Construction and repair

Computer and math

Legal and social services

Cleaning and personal care

Arts, media and sports

Transportation and moving

Production

Police and fire

Farming, fishing and forestry

0.1%

Industries

Health care and social assistance

15%

Professional and technical services

12%

Retail

10%

Manufacturing

Education

Finance, insurance and real estate

Wholesale

Restaurants and hotels

Transportation, warehousing and utilities

Public administration

Construction

Arts and recreation

Other services

Admin, support and management

Information

Agriculture and mining

0.3%

Median earnings per worker

$60,212

U.S. $49,666

Self-employed

15%

U.S. 10%

Government workers

15.4%

U.S. 14.5%

Nonprofit workers

7.6%

U.S. 8.8%

Median earnings by type of work

Type of work	91765	U.S.
Management, business, science and arts	$79,737	$74,888
Service	$21,637	$26,804
Sales and office	$41,733	$40,476
Construction and maintenance	$48,293	$49,199
Production and transportation	$40,100	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

14%

Some college

16%

Associate's

Bachelor's

35%

Graduate

19%

High school graduate or higher: 92.1%
Bachelor's degree or higher: 53.7%
Graduate or professional degree: 19.2%
Households with broadband: 95.7%
Cable, fiber or DSL: 79.2%
No internet access: 2.4%
Without health insurance: 3.3%
Limited-English households: 20.2%

Geography

City (USPS): Diamond Bar
State: California
County: Los Angeles County
Center point: 33.9852° N, 117.8120° W
Land area: 19 sq mi
Water area: under 0.1 sq mi
Time zone: Pacific Time (UTC-8, UTC-7 in summer)
Zip type: Residential delivery area

Cities and towns within this zip

Diamond Bar70% of zip

Census places overlapping the zip's area. Mail may use a different city name than the municipality.

Zip codes near 91765

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
91789	Walnut, CA	3.4 mi	40,298	$125,720	$975,000
91788	Walnut, CA · PO box	3.9 mi	—	—	—
92823	Brea, CA	4 mi	5,846	$169,900	$1,070,000
92821	Brea, CA	4.4 mi	41,623	$123,629	$903,200
91766	Pomona, CA	5.1 mi	69,327	$81,991	$599,000
91748	Rowland Heights, CA	5.2 mi	42,463	$83,428	$830,800
91768	Pomona, CA	5.6 mi	34,200	$76,041	$573,200
91709	Chino Hills, CA	5.7 mi	78,006	$126,350	$875,600
91792	West Covina, CA	5.8 mi	30,629	$94,817	$696,200
91769	Pomona, CA · PO box	5.9 mi	—	—	—
92886	Yorba Linda, CA	6.2 mi	49,704	$153,397	$1,116,500
92822	Brea, CA · PO box	6.4 mi	—	—	—

Zip codes like 91765 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 91765

What city is zip code 91765?

91765 is assigned to Diamond Bar, California. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 91765 in?

91765 is in Los Angeles County, California.

What is the population of 91765?

About 44,502 people live in 91765, according to the Census Bureau's American Community Survey.

What time zone is 91765 in?

91765 is in Pacific Time.

What is the median household income in 91765?

The median household income in 91765 is $105,565.

What zip codes are near 91765?

The closest zip codes to 91765 are 91789, 91788, 92823, 92821, 91766.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 91765, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.