StatisticDiamond BarCaliforniaNational
Population density (sq mi)3,79425691
Median age42.236.037.7
Male/Female ratio0.9:11.0:11.0:1
Married (15yrs & older)59%52%55%
Families w/ Kids under 1838%46%43%
Speak English42%56%79%
Speak Spanish10%29%13%

Key findings

  • The population density in Diamond Bar is 1382% higher than California
  • The median age in Diamond Bar is 17% higher than California
  • In Diamond Bar 28.71% of the population is White
  • In Diamond Bar 4.14% of the population is Black
  • In Diamond Bar 53.19% of the population is Asian

Compare Diamond Bar, CA Demographics


      Diamond Bar population breakdown by race

      RaceDiamond BarCaliforniaNational
      American Indian0.63%0.74%0.82%
      Native Hawaiian0.94%0.39%0.18%
      Mixed race3.95%4.62%3.06%
      Other race8.45%13.28%4.75%
      In Diamond Bar, 19.5% of people are of Hispanic or Latino origin.
      Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

      Household income distribution

      Place of birth by citizenship

      Diamond Bar age breakdown

      Marital status

      Age of children in married couples

      Source: The Diamond Bar, CA demographics data displayed above is derived from the 2016 United States Census Bureau American Community Survey (ACS).