California / Census place 0619192

Diamond Bar

A Census profile of the people, homes, and daily patterns that shape this place.

Official Census name: Diamond Bar city

At a glance

A city in numbers.

Population
51,884
2025 estimate
Annual change
-0.8%
Population estimate
Density
3,487/sq mi
14.9 sq mi land area
Median age
45.7 years
ACS 5-year estimate

Living here

The everyday equation.

Households, homes, education, and the time it takes to get around.

Median household income
$108,281
Median home value
$902,200
Median gross rent
$2,521
Bachelor’s degree or higher
52.8%
Typical commute
33.3 min
Public transit commute
1%

Climate normals

The long view of weather.

Thirty-year averages, not a forecast. Temperature and precipitation describe the typical conditions recorded from 1991 through 2020.

Representative station: CHINO AP (11 mi from place center)
Average high
80.8°F
Average low
51.4°F
Annual rainfall
10"
Annual snowfall
0"

Month by month

A year in Diamond Bar.

Typical high and low °F
JFMAMJJASOND
Typical precipitation inches
J
F
M
A
M
J
J
A
S
O
N
D

Data vintage

Population is from the 2025 Population Estimates Program. Household, housing, education, and commute data are from the 2020-2024 American Community Survey 5-year release.

Similar places

More places to consider.

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Population, housing, work, and travel data for this Census place.

Population
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Median home
$1,089,900
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Population, housing, work, and travel data for this Census place.

Population
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Median home
$922,300
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Population, housing, work, and travel data for this Census place.

Population
49,671
Median home
$862,700

Keep exploring

Compare Diamond Bar with Coral Gables