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

Relocation snapshot

What stands out in Diamond Bar.

According to the 2025 estimate, Diamond Bar has a population of 51,884 and 3,487 residents per square mile. Of the six relocation measures evaluated, the three largest relative differences from the median among 376 covered California places are: median home value is $902,200, above the comparison median of $717,000; median gross rent is $2,521, above the comparison median of $2,086; and typical commute is 33.3 minutes, above the comparison median of 28 minutes. These unweighted medians compare covered Census places and are not statewide estimates.

median home value
$902,200
Above the comparison median of $717,000
median gross rent
$2,521
Above the comparison median of $2,086
typical commute
33.3 minutes
Above the comparison median of 28 minutes

National context

Follow the metrics.

Compare Diamond Bar's values with other covered Census places. Rankings are descriptive, not recommendations.

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
Drive-alone commute
69.9%
Public transit commute
1%
Walked to work
0.4%

Housing

Who rents, and what it takes.

Renter share and rent burden help describe the housing choices visible in this place.

Renter-occupied homes
22.7%
Renters paying 30%+ of income
65.1%

Work

How the workday lands.

Employment status and working-from-home share add context to income and commuting patterns.

Employed residents 16+
58%
Unemployed residents 16+
3%
Working from home
18.4%

Community

The everyday infrastructure.

Access, mobility, housing growth, and household composition add another layer to a place's day-to-day picture.

Households with broadband
96%
Homes built 2020+
0.1%
Households without a vehicle
2.4%
Households with children
31.5%
Residents with a disability
9%
Residents without insurance
3.4%

Environmental context

A record of declared events.

FEMA declarations for Los Angeles County provide historical context, not a forecast or a property-level risk assessment.

Environmental declarations since 2000
65
Fire declarations
54
Severe Storm declarations
5
Flood declarations
4

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
40°F60°F80°F100°F
JFMAMJJASOND
Typical precipitation inches

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. Disaster declarations are from FEMA's OpenFEMA dataset and are refreshed with this edition.

Similar places

More places to consider.

Selected by the closest mix of population, density, median home value, and average annual high.

Coral Gables, FL

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

Population
49,578
Median home
$1,089,900

Brea, CA

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

Population
47,260
Median home
$922,300

Glendora, CA

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