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Overview

Introduction to Diamond Bar, California

The California City of Diamond Bar, located among the meandering hills and valleys of Brea Canyon in Los Angeles County, sits about 27 miles east of Los Angeles. Situated at the junction of California State Highways 57 and 60 (also known as the Orange and Pomona Freeways, respectively), the city is within an hour of three airports: Ontario International, John Wayne, and Los Angeles International. Nearby communities include Walnut (to the north), Pomona (to the east), Yorba Linda (to the south), and Rowland Heights (to the west).

The area now comprising Diamond Bar was originally part of a Mexican land grant known as Rancho Los Nogales ("Ranch of the Walnut Trees"). The ranch changed hands many times before being bought in 1918 by Frederich E. Lewis, who registered a branding iron with the California Department of Agriculture which featured a diamond over a bar, and named his property the Diamond Bar Ranch. There was minimal change to the Ranch until 1956, when the Transamerica Corporation acquired it for the purpose of developing a master-planned community. The first model homes were built in 1960, starting a development boom which has lasted to the present day. Although the original master plan was scrapped after Transamerica Corporation divested itself of all its real estate ventures in the 1970s and 1980s, other developers moved in to fill the void. In 1989, the City of Diamond Bar was incorporated.

Things to Do in Diamond Bar

Diamond Bar operates and maintains nine parks totaling more than 160 acres, along with recreational trails and recreation facilities located throughout the city. Diamond Bar is also home to the T.H. Pendergast California Parole Museum, which chronicles the history of parole in California. The facility, which opened its doors in 2003, strives to educate the public about parole and honor those who have worked in the areas of public protection and restorative justice. Every year, Diamond Bar hosts a number of popular celebrations. The largest of these is the City of Diamond Bar's Birthday Party. Held every April, this event celebrates the cultural diversity of the community and patriotic spirit of the city and features food, rides, games, entertainment, a car show, a craft fair, and more. The 4th of July Blast is a fun-filled Independence Day celebration culminating in a spectacular aerial fireworks show. Every summer the city hosts a Concerts in the Park series, consisting of free outdoor concerts held at Sycamore Canyon Park on seven consecutive Wednesday evenings from late June through mid-August. In December, families can enjoy the Winter Snow Fest, which features snow play areas, children's game booths, and much more. A twenty-five mile radius around Diamond Bar encompasses downtown Los Angeles, Pasadena, Anaheim, and Long Beach. Within that radius are numerous world-class Southern California attractions as well as ski slopes and beaches.

People

Total Population 56,259
Male Share of the Population 49.1%
Female Share of the Population 50.9%
Senior Citizens 12.8%
Employed Population 16+ 27,451
Age of the Population 41

Families

% of people married 53.2%
Average household size 3

Education and Earnings

Population % with Bachelor Degree or Higher 47.9%
Median Earnings25+ $46,574
Median Earnings Without High School Qualification $16,815
Median Earnings With High School Degree $32,213

Wealth

Median Family Income $95,500
% Above Poverty Level 93.6%
% Below Poverty Level 6.4%

Commute & Sprawl

Average Commute Time 35 minutes
% Working from Home 6.6%
% Walking and Biking to Work 1.5%
% Using Public Transportation 2.9%

Housing

People Living Alone 11.5%
Median Gross Rent $1,804
Median House Value $533,700

Ancestry

Other(often includes Hispanic and African American) 76.2%
US/American 1%
English 2.6%
Irish 3.5%

Diamond Bar Almanac

Category Value
Nearest Large City 14 miles NE of Anaheim, California
County Los Angeles
Standard Zip Codes 91765
Phone Area Codes 909
Time Zone Pacific (-8 hours from GMT)
Daylight Savings The city observes Daylight Saving Time.
Latitude 34.028
Longitude -117.809

Diamond Bar Climate

Nearest Weather Stations

Notes:

  • Temp ranges are avg daily min and max for the month
  • Precipitation is rainfall (and rainfall equiv of snowfall)

Station POMONA FAIRPLEX
Distance 4.5 miles
Jan Temp 42 to 68 F
Apr Temp 47 to 74 F
Jul Temp 59 to 89 F
Oct Temp 53 to 80 F
Annual Precip 16.9 inches
Station ANAHEIM
Distance 11.4 miles
Jan Temp 45 to 69 F
Apr Temp 51 to 73 F
Jul Temp 62 to 84 F
Oct Temp 56 to 80 F
Annual Precip 11.2 inches
Station FONTANA KAISER (ONTARIO)
Distance 17.2 miles
Jan Temp 45 to 68 F
Apr Temp 49 to 76 F
Jul Temp 62 to 95 F
Oct Temp 56 to 83 F
Annual Precip 14.7 inches

Nearby Cities and Towns

Location Population Median Family Income
Claremont 35,569 $108,739
Covina 48,429 $73,113
La Verne 31,592 $95,045
Pomona 151,142 $50,475
San Dimas 33,896 $92,140
Walnut 29,822 $107,750
These schools offer particularly quick info upon request, and we have written detailed profiles for each (click school names to see the profiles). Request info from multiple schools, by clicking the Request Info links.
 
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Montclair
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  • Master of Science in Accounting - Forensic Accounting
  • MS in Management/Project Management
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  • Work toward your graduate degree with New England College Online.

Diamond Bar High Schools

DIAMOND BAR HIGH
21400 PATHFINDER ROAD
909-594-1405
Serves 3,094 students.
Student/teacher ratio: 24.9

Additional Details
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