Castaic demographics profile

Population density (sq mi)2,68923291
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%
Castaic, CA has a population of 19,529 and is the 2,228th largest city in the United States. The population density is 2,689 per sq mi which is 1057% higher than the California average and 2868% higher than the national average. The median age in Castaic is 36 which is approximately equal to the California average of 36. In Castaic, 61% of the population over 15 years of age are married, 76% speak English and 15% speak Spanish. 63% of Castaic residents were born in California, 19% were born out of state, 0% were born outside of the United States and 18% were foreign born.

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Did you know?

  • The population density in Castaic is 1057% 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 or African American.
  • In Castaic 9.33% of the population is Asian.

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Castaic population breakdown by race

Black or African American2.89%5.85%12.63%
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.

Languages spoken

Place of birth by citizenship

Household income distribution

Source of income

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).