Population density (sq mi)2,97225691
Median age43.836.037.7
Male/Female ratio1.0:11.0:11.0:1
Married (15yrs & older)56%52%55%
Families w/ Kids under 1839%46%43%
Speak English85%56%79%
Speak Spanish7%29%13%

Key findings

  • The population density in Martinez is 1061% higher than California
  • The median age in Martinez is 22% higher than California
  • In Martinez 77.92% of the population is White
  • In Martinez 2.53% of the population is Black
  • In Martinez 7.46% of the population is Asian

Compare Martinez, CA Demographics


      Martinez population breakdown by race

      American Indian0.65%0.74%0.82%
      Native Hawaiian0.42%0.39%0.18%
      Mixed race5.80%4.62%3.06%
      Other race5.23%13.28%4.75%
      In Martinez, 16.3% 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

      Martinez age breakdown

      Marital status

      Age of children in married couples

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