Population density (sq mi)2,68925691
Median age35.936.037.7
Male/Female ratio1.0:11.0:11.0:1
Married (15yrs & older)61%52%55%
Families w/ Kids under 1855%46%43%
Speak English76%56%79%
Speak Spanish15%29%13%

Key findings

  • The population density in Castaic is 951% higher than California
  • The median age in Castaic is equal to California
  • In Castaic 75.96% of the population is White
  • In Castaic 2.89% of the population is Black
  • In Castaic 9.33% of the population is Asian

Compare Castaic, CA Demographics


      Castaic population breakdown by race

      American Indian0.15%0.74%0.82%
      Native Hawaiian0.33%0.39%0.18%
      Mixed race6.04%4.62%3.06%
      Other race5.29%13.28%4.75%
      In Castaic, 28.5% 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

      Castaic age breakdown

      Marital status

      Age of children in married couples

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