StatisticSan MartinCaliforniaNational
Population density (sq mi)62525691
Median age43.536.037.7
Male/Female ratio1.1:11.0:11.0:1
Married (15yrs & older)59%52%55%
Families w/ Kids under 1839%46%43%
Speak English61%56%79%
Speak Spanish30%29%13%

Key findings

  • The population density in San Martin is 144% higher than California
  • The median age in San Martin is 21% higher than California
  • In San Martin 71.55% of the population is White
  • In San Martin 1.78% of the population is Black
  • In San Martin 6.38% of the population is Asian

Compare San Martin, CA Demographics


      San Martin population breakdown by race

      RaceSan MartinCaliforniaNational
      American Indian0.28%0.74%0.82%
      Native Hawaiian3.45%0.39%0.18%
      Mixed race4.73%4.62%3.06%
      Other race11.83%13.28%4.75%
      In San Martin, 43.8% 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

      San Martin age breakdown

      Marital status

      Age of children in married couples

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