Median Age
45 Years
Largest Age Group
55-64 Years
Approximately 14% of Residents
Under 20
20%
Over 65
22%
Avg Rent
$2,429
Population
53,415
Renter Mix
26% Rent
Who wouldn’t want to live along Southern California’s rolling hills in the affluent suburbs of Diamond Bar? This primarily residential area offers picturesque neighborhoods, open green space, golf courses, community parks, and so much more. In fact, the city almost appears like a massive park itself.
You’ll love the safe streets and scenic views from city parks such as Pantera Park and Sycamore Canyon Park. Enjoy nature trails, dog parks, and beautiful views of Southern California’s sprawling mountain ranges from Diamond Bar’s open green spaces.
Excellent schools are offered in the Walnut Valley Unified School District, and there’s always time to tee off at Diamond Bar Golf Course in this tranquil city. On the edge of town, you’ll discover a train that takes you straight to Los Angeles’ Union Station, with Diamond Bar located just 28 miles east of Downtown LA. Discover all of the wonderful attractions, nearby amenities, tight-knit community, and upscale apartments and houses in this family-friendly suburbia.
Median Household Income
$107,062
Average: $130,379
Education
23,155
Residents Have a Degree
Job Market
27,197
Workers Employed
Median Age
45 Years
Largest Age Group
55-64 Years
Approximately 14% of Residents
Under 20
20%
Over 65
22%
Housing Distribution
Diamond Bar has more homeowners than renters.
Education Distribution
Review this city's overall education levels.
As of April 2026, the average apartment rent in Diamond Bar, CA is $2,429 for one bedroom, $2,708 for two bedrooms, and $2,958 for three bedrooms. Apartment rent in Diamond Bar has decreased by -1.2% in the past year.
Explore how walkable, bikeable, drivable, and transit-friendly Diamond Bar, CA is for everyday living.
Fairly Walkable
Walkability
Limited Public Transit
Transit
Exceptionally Drivable
Drivability
Fairly Bikeable
Bikeability
Public
Grades K-5
684 Students
Public
Grades K-5
512 Students
Public
Grades K-5
556 Students
Public
Grades K-5
709 Students
Public
Grades K-5
696 Students
Public
Grades 6-8
1,349 Students
Public
Grades 6-8
688 Students
Public
Grades 9-12
2,563 Students
The GreatSchools Rating helps parents compare schools within a state based on a variety of school quality indicators and provides a helpful picture of how effectively each school serves all of its students. Ratings are on a scale of 1 (below average) to 10 (above average) and can include test scores, college readiness, academic progress, advanced courses, equity, discipline and attendance data. We also advise parents to visit schools, consider other information on school performance and programs, and consider family needs as part of the school selection process.
View GreatSchools Rating Methodology
Data provided by
GreatSchools.org
© 2026. All rights reserved.
† Our analysis of utilities, groceries, transportation, healthcare, home prices, and other goods and services is sourced from the Cost of Living Index, a respected benchmark published by the Council for Community and Economic Research (C2ER) that provides a thorough overview of living expenses across different regions.
Rent data is provided by CoStar Group’s Market Trend reports. As the industry leader in commercial real estate information, analytics, and news, CoStar conducts extensive research to produce and maintain a comprehensive database of commercial real estate information. We combine this data with public record to provide the most up-to-date rental information available.
Consumer goods, services, and home prices are sourced from the Cost of Living Index published by the Council for Community and Economic Research (C2ER). The data on this page is updated quarterly. It was last published in February 2026.
Demographic information comes from Neustar and combines detailed address data with U.S. Census and American Community Survey statistics to produce reliable local estimates.