Diamond Bar, CA Profile: Facts, Map & Data


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Diamond Bar, California - Basic Facts

The City of Diamond Bar had a population of 56,631 as of July 1, 2016. Diamond Bar ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in California. See peer rankings below.

The primary coordinate point for Diamond Bar is located at latitude 34.0016 and longitude -117.8176 in Los Angeles County. The formal boundaries for the City of Diamond Bar (see map below) encompass a land area of 14.88 sq. miles and a water area of 0 sq. miles. Los Angeles County is in the Pacific time zone (GMT -8). The elevation is 696 feet.

The City of Diamond Bar (GNIS ID: 2410334) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

California is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of Diamond Bar is located within East San Gabriel Valley CCD of Los Angeles County.

Beneath the boundary map are tables with Diamond Bar population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Neighborhood Data

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City of Diamond Bar, CA Boundary Map

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Diamond Bar, CA Data & Demographics (As of July 1, 2016)


Total Population 56,631
Population in Households 56,500
Population in Familes 51,156
Population in Group Qrtrs 131
Population Density1 3,806
Diversity Index2 73


Total Households 18,091
Average Household Size 3.12
Family Households 15,023
Average Family Size 3


Total Housing Units 18,718 (100%)
Owner Occupied HU 14,423 (77.1%)
Renter Occupied HU 3,668 (19.6%)
Vacant Housing Units 627 ( 3.3%)
Median Home Value $587,189
Average Home Value $609,650


Median Household Income $91,764
Average Household Income $113,048
Per Capita Income $36,328
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.31% 0.49%
Households 0.19% 0.41%
Families 0.19% 0.43%
Median Household Income   2.28%
Per Capita Income   1.68%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Diamond Bar, CA - Peer Comparisons by Rank and Percentile

The table below compares Diamond Bar to the other 1,516 incorporated cities, towns and CDPs in California by rank and percentile using July 1, 2016 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 164 89th
Population Density1 # 334 78th
Diversity Index2 # 551 64th
Median Household Income # 206 86th
Per Capita Income # 403 73rd

Additional comparisons and rankings can be made with a VERY EASY TO USE California Census Data Comparison Tool.

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