2025 Compare Cities Overview:
Diamond Bar, CA vs Costa Mesa, CA

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Highlights
Are people in Costa Mesa older or younger than people in Diamond Bar?
- The Median Age in Costa Mesa is 7.7 years younger than in Diamond Bar.

Are housing costs cheaper in Costa Mesa or Diamond Bar?
- Costa Mesa housing costs are 24.0% more expensive than Diamond Bar housing costs.

Which city has a longer commute, Costa Mesa or Diamond Bar?
- The average commute for residents of Costa Mesa is 13.4 minutes shorter than it is for residents of Diamond Bar.

Things to do in Diamond Bar?
Diamond Bar, California is an affluent city located in the eastern part of Los Angeles County. It offers residents a tranquil suburban lifestyle with easy access to shopping, dining, entertainment and cultural activities in nearby cities. Diamond Bar is home to numerous parks and trails for outdoor recreation, as well as several golf courses and recreational amenities such as aquatic centers and athletic fields. The city is also known for its excellent public schools and quality educational institutions offering a variety of programs from elementary school through college. Whether you’re looking for a place to live or visit, Diamond Bar has something for everyone!

Things to do in Costa Mesa?
Costa Mesa, California is an upscale beach-side city located in the Orange County region of Southern California. With its sunny days, mild winters, and beautiful beaches, Costa Mesa provides a perfect escape from the hustle and bustle of city life. From world-class shopping malls to award-winning art galleries and top-notch dining options, there's something for everyone in this vibrant coastal town. For those looking for active outdoor pursuits, Costa Mesa offers plenty of parks, trails and other nature activities; whatever your interests may be - you're sure to find something to enjoy here!

 Diamond Bar, CACosta Mesa, CAUnited States
 Population  Unlock112,148329,725,481
 Median Income$100,776  Unlock$69,021
 Median Age  Unlock3638.4
 Avg. Home Price$885,200  Unlock$338,100
 Unemployment Rate  Unlock5.5%6.0%
 Avg. Commute Time35.85  Unlock26.38
Reviews for Diamond Bar    3 Reviews

Over 14 years ago

Beautiful city and great place to raise a family. The worst part of Diamond Bar would be some of the best places to live in other cities. Diamond Bar has some of the  More

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Over 14 years ago

The city is centrally located to riverside, San Bernardino, Orange County and Downtown La. It is very scenic with beautiful hills, great schools and within easy reach,  More

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Over 15 years ago

This is a very quiet area about 30 mile east of downtown Los Angeles. I'm a bit concerned about what effect a possible new NFL stadium in the City of Industry CA will  More

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Reviews for Costa Mesa    8 Reviews

Over 15 years ago

Costa mesa has awesome shopping but is way too crowded and I have had 3 cars stolen in the past 5 years along with countless break-ins and theft. Expensive. Close to  More

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Over 16 years ago

Costa Mesa has a near perfect climate . . . plenty of sun but rarely over 100 degrees (our house doesn't even have AC). Nestled between Newport Beach and Huntington  More

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We have a good amount of low-income, medium-income, and relatively high-income  More

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