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CITY · 2000 CENSUS

Diamond Bar

California · 56,287 residents · 14.878 sq mi
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The short version

Diamond Bar is significantly wealthier than the US average, with a median household income of $68,871. Population has held roughly steady since 1990. 42% of adults hold a bachelor's degree or higher, well above the national rate of 24%. Median home value is $237,800. Poverty is rare here, at 6.0% of residents. Households here earn about 45% more than the California median.

At a glance
Wealthier
above the US median
US median: $42,589
Mid-age
median age 36.5
US median: 35.2
More educated
42% hold a bachelor's degree
US average: 24%
More affordable
home values down 34%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

Total population
56,287
+5%since 1990
from 53,672 in 1990
1990 – 2025
Population density
3,783 / sq mi
+5%since 1990
from 3,607 / sq mi in 1990
US average: 242
Median age
36.5
+14%since 1990
from 31.9 in 1990
US average: 35.2
Population, 1990 – 2024
53K54K55K56K57K1990201020202024Diamond Bar
202453K
1990201020202024
Section 02

Income & economy

Median household income
$68,871
−14%inflation adjusted, since 1990
from $60,651 in 1990
US average: $42,589
1990 – 2024
Per capita income
$25,472
+18%since 1990
from $21,497 in 1990
US average: $21,522
Poverty rate
6.0%
+2.5 ptssince 1990
from 3.5% in 1990
US average: 12.4%
Section 03

Housing

Median home value
$237,800
−34%inflation adjusted, since 1990
from $271,500 in 1990
US average: $120,530
1990 – 2024
Median gross rent
$1,012
−18%inflation adjusted, since 1990
from $940 in 1990
US average: $602
Owner-occupied
82.6%
−3.1 ptssince 1990
from 85.7% in 1990
17.4% rent
Afford Score
3.5
−23%since 1990
from 4.5 in 1990
1990 – 2024
RELATED:See current rent listings in Diamond Bar on RentDataNow
Section 04

Race & ethnicity

1990
White, non-Hispanic63.8%(34,252)
Black5.7%(3,036)
Hispanic / Latino16.5%(8,839)
Asian24.9%(13,372)
Diversity Score78.7%(42,222)
2000
White, non-Hispanic31%(17,471)
Black4.7%(2,624)
Hispanic / Latino18.5%(10,393)
Asian42.5%(23,922)
Diversity Score83.1%(46,773)
Diversity Score
83
+6%since 1990
from 79 in 1990
1990 – 2024
Section 05

Education

Bachelor's degree or higher
42.3%
+5.3 ptssince 1990
from 37.0% in 1990
US average: 24.4%
High school or higher
90.7%
+0.1 ptssince 1990
from 90.6% in 1990
US average: 80.3%
Graduate degree
13.4%
+2.2 ptssince 1990
from 11.2% in 1990
US average: 8.8%
Section 06

Commute & transportation

Average commute
27.4 min
−11%since 1990
from 30.9 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Drill deeper

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Head to head

Compare Diamond Bar to nearby cities

DIAMOND BAR VS
Walnut
Income$129,449+88%
Home value$1,014,000+326%
Population27,316−47%
SEE FULL COMPARISON →
DIAMOND BAR VS
Rowland Heights
Income$85,617+24%
Home value$851,300+258%
Population45,911−12%
SEE FULL COMPARISON →
DIAMOND BAR VS
South San Jose Hills
Income$94,806+38%
Home value$544,400+129%
Population16,911−67%
SEE FULL COMPARISON →
DIAMOND BAR VS
Pomona
Income$79,479+15%
Home value$593,800+150%
Population147,807+185%
SEE FULL COMPARISON →
Frequently asked

How many people live in Diamond Bar, California?

Diamond Bar, California has about 56,287 residents according to the 2000 Census.

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

The typical household in Diamond Bar, California earns about $68,871 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 $237,800, and the typical rent is about $1,012 a month.

How educated are people in Diamond Bar, California?

About 42.3% 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 6.0% of people in Diamond Bar, California live below the federal poverty line.

Has Diamond Bar, California grown since 1990?

Yes, Diamond Bar, California has grown since 1990. The population has added about 2,615 residents, a change of about 5 percent over that period.

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

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