Is Diamond Bar the best California city for your business?

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Now you can skip hours of internet research and jump straight to getting answers with our meaningful at-a-glance Demographics Spreadsheet Report. With the most current & most popular demographic data, it's the perfect starting point for your research about Diamond Bar and the rest of California.

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Diamond Bar Population

All Diamond Bar population data above are from the US Census Bureau.

The population data for Diamond Bar are from the Census' American Community Survey 2018 5-year estimates and the Census' 2019 Population Estimates. The demographic data for Edna, Highland, Novato, and South Pasadena are the most current, comparable demographics available from the US Census Bureau, are from the American Community Survey 2018 5-year estimates, and were downloaded on 19 December 2019. Check out our FAQ section for more details.

Diamond Bar Demographics Summary

population icon Population

With 55,720 people, Diamond Bar is the 167th most populated city in the state of California out of 1,490 cities. But watch out, Diamond Bar, because Highland with 55,417 people and Novato with 55,516 people are right behind you.

race icon Race & Ethnicity

The largest Diamond Bar racial/ethnic groups are Asian (54.9%) followed by Hispanic (19.3%) and White (19.0%).

income icon Median Income

In 2018, the median household income of Diamond Bar residents was $96,628. Diamond Bar households made slightly more than Edna households ($96,125) and South Pasadena households ($96,579) . However, 6.3% of Diamond Bar residents live in poverty.

age icon Median Age

The median age for Diamond Bar residents is 41.8 years young.


86% of people CANNOT find the data they're looking for on the US Census Bureau website. Source: Nielsen Norman Group

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