CensusEasy
CITY

Diamond Bar

California · 51,884 residents (2025 est.) · 14.878 sq mi
Time machine
COMPARE TO
Part of the Los Angeles metro area
Compare
Notable rankings
#91Most foreign-born residentsof 6,82647.3%
The short version

Diamond Bar is significantly wealthier than the US average, with a median household income of $108,281. Population has declined 5% since 2000. 53% of adults hold a bachelor's degree or higher, well above the national rate of 36%. Median home value has more than tripled since 2000, reaching $902,200. With a median age of 45.7, the population is older than the US median of 38.9. It sits in the top 10% of US cities for household income.

At a glance
Wealthier
above the US median
US median: $82,259
Older
median age 45.7
US median: 38.9
More educated
53% hold a bachelor's degree
US average: 36%
Less affordable
home values up 108%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
53,355
−5%since 2000
from 56,287 in 2000
1990 – 2025
Population density
3,586 / sq mi
−5%since 2000
from 3,783 / sq mi in 2000
US average: 281
Median age
45.7
+25%since 2000
from 36.5 in 2000
US average: 38.9

PEP 2025 EST:51,884 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
53K54K55K56K57K1990201020202024Diamond Bar
202453K
1990201020202024
Section 02

Income & economy

Median household income
$108,281
−14%inflation adjusted, since 2000
from $68,871 in 2000
US average: $82,259
1990 – 2024
Per capita income
$47,945
+88%since 2000
from $25,472 in 2000
US average: $44,673
Households earning $100K+
63.8%
+6.3 ptssince 2009
from 57.5% in 2009
US average: 53.3%
Poverty rate
10.0%
+4.0 ptssince 2000
from 6.0% in 2000
US average: 12.5%
Income inequality (Gini)
0.454
+24%since 2010
from 0.366 in 2010
US average: 0.476
Workforce by industry, 2024
Information10.2%
US avg: 10.8%
Retail trade10%
US avg: 9.9%
Other services8.2%
US avg: 6.7%
Transportation & warehousing6.9%
US avg: 2.2%
Finance & insurance5.8%
US avg: 5.9%
Public administration5.6%
US avg: 4.8%
Professional, scientific, technical5%
US avg: 5.1%
Wholesale trade4%
US avg: 6.9%
Arts, entertainment, food1%
US avg: 1.9%
Education & health services0.8%
US avg: 0.9%
Agriculture, forestry, fishing0.2%
US avg: 1.6%
Construction0.2%
US avg: 1.2%
Manufacturing0%
US avg: 0.4%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$902,200
+108%inflation adjusted, since 2000
from $237,800 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$2,521
+37%inflation adjusted, since 2000
from $1,012 in 2000
US average: $1,442
Owner-occupied
77.3%
−5.3 ptssince 2000
from 82.6% in 2000
22.7% rent
Vacancy rate
5.1%
+2.0 ptssince 2009
from 3.0% in 2009
US average: 10.0%
Owner cost-burdened
33.3%
−8.4 ptssince 2009
from 41.7% in 2009
US average: 22.9%
Renter cost-burdened
59.9%
−2.2 ptssince 2009
from 62.1% in 2009
US average: 47.4%
Afford Score
8.3
+141%since 2000
from 3.5 in 2000
1990 – 2024
Gentrification Score
39
RELATED:See current rent listings in Diamond Bar on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic31%(17,471)
Black4.7%(2,624)
Hispanic / Latino18.5%(10,393)
Asian42.5%(23,922)
Other0%
Diversity Score83.1%(46,773)
2024
White, non-Hispanic11.8%(6,276)
Black3%(1,603)
Hispanic / Latino17.4%(9,291)
Asian62.4%(33,316)
Other5.4%(2,869)
Diversity Score70.3%(37,492)
Diversity Score
70
−15%since 2000
from 83 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
52.8%
+10.5 ptssince 2000
from 42.3% in 2000
US average: 35.6%
High school or higher
92.1%
+1.4 ptssince 2000
from 90.7% in 2000
US average: 89.6%
Graduate degree
19.2%
+5.9 ptssince 2000
from 13.4% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
33.3 min
+22%since 2000
from 27.4 min in 2000
US average: 26.5
Drive alone to work
69.9%
−10.3 ptssince 2009
from 80.2% in 2009
US average: 68.9%
Carpooled to work
9.3%
−2.3 ptssince 2009
from 11.7% in 2009
US average: 8.5%
Public transit
1.0%
−0.9 ptssince 2009
from 1.9% in 2009
US average: 3.2%
Worked from home
18.4%
+13.6 ptssince 2009
from 4.8% in 2009
US average: 15.0%
Walked to work
0.4%
−0.3 ptssince 2009
from 0.6% in 2009
US average: 2.4%
Biked to work
0.3%
+0.2 ptssince 2009
from 0.0% in 2009
US average: 0.4%
No vehicle available
2.4%
+0.9 ptssince 2009
from 1.5% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
4.9%
−1.2 ptssince 2011
from 6.0% in 2011
US average: 5.2%
Labor force participation
61.1%
−3.8 ptssince 2011
from 64.9% in 2011
US average: 63.5%
Self-employed
14.7%
+0.5 ptssince 2009
from 14.2% in 2009
US average: 13.1%
Management & professional
55.2%
−16.7 ptssince 2009
from 72.0% in 2009
US average: 42.5%
Section 08

People & community

Male
47.5%
−1.4 ptssince 2009
from 48.8% in 2009
Female
52.5%
+1.4 ptssince 2009
from 51.2% in 2009
Foreign born
47.3%
+5.9 ptssince 2009
from 41.4% in 2009
US average: 14.1%
Veterans
2.5%
−45.2 ptssince 2009
from 47.7% in 2009
US average: 6.2%
With a disability
9.0%
+2.0 ptssince 2012
from 7.0% in 2012
US average: 13.3%
Uninsured
3.4%
−84.3 ptssince 2013
from 87.7% in 2013
US average: 8.4%
Broadband at home
96.0%
+4.3 ptssince 2017
from 91.7% in 2017
US average: 91.0%
English only at home
36.7%
−5.2 ptssince 2016
from 41.9% in 2016
US average: 77.7%
Spanish at home
9.6%
−0.6 ptssince 2016
from 10.1% in 2016
US average: 13.6%
Drill deeper

Places similar to Diamond Bar

Winter Garden
Pop 48,063
Ocoee
Pop 51,932
Jupiter
Pop 62,350
Palm Beach Gardens
Pop 63,883
Places similar to Diamond Bar
Head to head

Compare Diamond Bar to nearby cities

DIAMOND BAR VS
Walnut
Income$129,449+20%
Home value$1,014,000+12%
Population27,316−47%
SEE FULL COMPARISON →
DIAMOND BAR VS
Rowland Heights
Income$85,617−21%
Home value$851,300−6%
Population45,911−12%
SEE FULL COMPARISON →
DIAMOND BAR VS
South San Jose Hills
Income$94,806−12%
Home value$544,400−40%
Population16,911−67%
SEE FULL COMPARISON →
DIAMOND BAR VS
Pomona
Income$79,479−27%
Home value$593,800−34%
Population147,807+185%
SEE FULL COMPARISON →
Frequently asked

How many people live in Diamond Bar, California?

Diamond Bar, California has about 53,355 residents according to the 2024 American Community Survey.

What is the median household income in Diamond Bar, California?

The typical household in Diamond Bar, California earns about $108,281 a year. Half of households make more than that, and half make less.

Is Diamond Bar, California expensive?

In Diamond Bar, California, the median home is worth about $902,200, and the typical rent is about $2,521 a month.

How educated are people in Diamond Bar, California?

About 52.8% of adults age 25 and over in Diamond Bar, California hold a bachelor's degree or higher.

What is the poverty rate in Diamond Bar, California?

About 10.0% of people in Diamond Bar, California live below the federal poverty line.

Has Diamond Bar, California grown since 1990?

Yes, Diamond Bar, California has shrunk since 1990. The population has lost about 317 residents, a change of about -1 percent over that period.

Keep going

Explore from here

Up the hierarchy
California
Rankings
Highest income citiesFastest growing citiesMost educated cities
Compare
Compare Diamond Bar with another place

DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →

Diamond Bar, California: demographics, income & housing data · CensusEasy