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CITY · 1990 CENSUS

Diamond Bar

California · 53,672 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 $60,651. Population has declined 5% since 2000. 37% of adults hold a bachelor's degree or higher, well above the national rate of 20%. Median home value is $271,500. Poverty is rare here, at 3.5% of residents. Households here earn about 69% more than the California median.

At a glance
Wealthier
above the US median
US median: $30,130
Mid-age
median age 31.9
US median: 33.0
More educated
37% hold a bachelor's degree
US average: 20%
Less affordable
home values up 50%, inflation adjusted
US median home: $93,722
Section 01

Population & growth

53,672
−5%vs 2000
vs 56,287 in 2000
1990 – 2025
3,607 / sq mi
−5%vs 2000
vs 3,783 / sq mi in 2000
US average: 221
31.9
−13%vs 2000
vs 36.5 in 2000
US average: 33.0
Population, 19902024
53K54K55K56K57K1990201020202024Diamond Bar
202453K
1990201020202024
Section 02

Income & economy

$60,651
+16%inflation adjusted, since 2000
vs $68,871 in 2000
US average: $30,130
1990 – 2024
$21,497
−16%vs 2000
vs $25,472 in 2000
US average: $14,340
3.5%
−2.5 ptsvs 2000
vs 6.0% in 2000
US average: 13.2%
Section 03

Housing

$271,500
+50%inflation adjusted, since 2000
vs $237,800 in 2000
US average: $93,722
1990 – 2024
$940
+22%inflation adjusted, since 2000
vs $1,012 in 2000
US average: $450
85.7%
+3.1 ptsvs 2000
vs 82.6% in 2000
14.3% rent
4.5
+30%vs 2000
vs 3.5 in 2000
1990 – 2024
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)
1990
White, non-Hispanic63.8%(34,252)
Black5.7%(3,036)
Hispanic / Latino16.5%(8,839)
Asian24.9%(13,372)
Other5.6%(3,012)
Diversity Score78.7%(42,222)
79
−5%vs 2000
vs 83 in 2000
1990 – 2024
Section 05

Education

37.0%
−5.3 ptsvs 2000
vs 42.3% in 2000
US average: 20.3%
High school or higher
90.6%
−0.1 ptsvs 2000
vs 90.7% in 2000
US average: 75.2%
11.2%
−2.2 ptsvs 2000
vs 13.4% in 2000
US average: 7.1%
Section 06

Commute & transportation

30.9 min
+13%vs 2000
vs 27.4 min in 2000
US average: 21.9
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

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Frequently asked

How many people live in Diamond Bar, California?

Diamond Bar, California has about 53,672 residents according to the 1990 Census.

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

The typical household in Diamond Bar, California earns about $60,651 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 $271,500, and the typical rent is about $940 a month.

How educated are people in Diamond Bar, California?

About 37.0% 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 3.5% of people in Diamond Bar, California live below the federal poverty line.

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

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