Elementary School District · CA
Castaic Union School District
Castaic Union School District is a elementary school district in California with a community population of 27,177. The median household income is $133,803 and the median age is 36.0.
27,177
Population
178
People / sq mi
$133,803
Median Income
36.0
Median Age
Castaic Union School District covers 152 sq mi of land at 178.4 people per square mile.
Race & Ethnicity
| White | 47.1% |
| Black or African American | 0.3% |
| Asian | 34.4% |
| Hispanic or Latino (any race) | 0.0% |
Economy & Income
$133,803
Median Household Income
$43,045
Per Capita Income
4.4%
Poverty Rate
2.9%
Unemployment
Housing
$776,200
Median Home Value
$1,765
Median Rent
84.1%
Homeownership
Education Attainment
84.1%
High School+
33.7%
Bachelor's+
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Frequently Asked Questions
Castaic Union School District serves a community with a population of 27,177 according to the latest Census ACS 5-Year estimates. This elementary school district is located in California.
The median household income in Castaic Union School District is $133,803, with a per capita income of $43,045. The poverty rate is 4.4%.
Castaic Union School District is 47.1% White, 0.3% Black or African American, 34.4% Asian, and 0.0% Hispanic or Latino, per Census ACS data.
In Castaic Union School District, 84.1% of adults have a high school diploma or higher, and 33.7% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in Castaic Union School District is $776,200, with a median rent of $1,765. The homeownership rate is 84.1%.
More from California
Data for Castaic Union School District from the American Community Survey 5-Year estimates. Land area from Census Gazetteer files. This is a elementary school district (GEOID: 0607740).
this entity is one of the data points covered by this site’s U.S. population demographics dataset. The detail above comes directly from the U.S. Census Bureau ACS and decennial files; the context that follows situates the headline numbers against the broader distribution across U.S. states, metros, cities, and ZIPs.
The methodology behind every numeric value on this page is publicly documented on the the U.S. Census Bureau ACS and decennial files portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. states, metros, cities, and ZIPs. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: U.S. Census Bureau ACS, 2026.