In 2021, Diamond Bar, CA had a population of 55.3k people with a median age of 43.7 and a median household income of $100,776. Between 2020 and 2021 the population of Diamond Bar, CA declined from 55,870 to 55,339, a −0.95% decrease and its median household income grew from $100,723 to $100,776, a 0.0526% increase.
The 5 largest ethnic groups in Diamond Bar, CA are Asian (Non-Hispanic) (60.7%), White (Non-Hispanic) (14.1%), White (Hispanic) (9.24%), Other (Hispanic) (4.78%), and Black or African American (Non-Hispanic) (3.98%).
None of the households in Diamond Bar, CA reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
87.1% of the residents in Diamond Bar, CA are U.S. citizens.
In 2021, the median property value in Diamond Bar, CA was $702,600, and the homeownership rate was 78%.
Most people in Diamond Bar, CA drove alone to work, and the average commute time was 35.8 minutes. The average car ownership in Diamond Bar, CA was 2 cars per household.