Castaic CDP, California Demographics & Population 2026
As of 2026, Castaic CDP, California has a total population of 18,479, the 370th largest city in California, with a median household income of $132,153, which is 37% higher than the state average. The poverty rate is 4.0%.
Key Takeaways
- Household income is 37% above the state average — one of the wealthiest communities in California.
- An exceptionally low poverty rate of 4.0% — among the lowest in California.
Castaic CDP Quick Facts
How Castaic CDP Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A diverse community with significant representation from multiple racial and ethnic groups.
State average: 69 | National average: 60
Education
Educational Attainment (Adults 25+)
Castaic CDP Rankings in California
Explore California Rankings
Cities Similar to Castaic CDP
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Coronado city | 18,558 | $135,056 | $1,998,900 | 66.2% | 4.8% |
| Rosedale CDP | 19,325 | $134,697 | $594,000 | 39.3% | 5.4% |
| Pinole city | 18,835 | $120,833 | $697,100 | 38.7% | 6.5% |
| Albany city | 19,768 | $135,927 | $1,188,600 | 76.3% | 8.3% |
| Casa de Oro-Mount Helix CDP | 19,651 | $123,037 | $906,500 | 48.0% | 4.7% |
Population Overview
Castaic CDP is a small city located in California. The total population is 18,479. It ranks as the 370th most populous out of 1,577 cities and towns in California.
Age Demographics
The median age in Castaic CDP is 37.2 years. This is 1% lower than the state median of 37.6 years.
Economy, Income & Housing
The median household income in Castaic CDP is $132,153. This is 37% higher than the state median of $96,334. Compared to the national median of $78,538, household income here is 68% higher. The poverty rate stands at 4.0%. This is 66% lower than the state poverty rate of 12.0%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 5.1%. This is 21% lower than the state rate of 6.4%. The median home value is $710,400. Housing costs are 2% higher than the state median of $695,400. The home-value-to-income ratio is 5.4x. 84.4% of occupied housing units are owner-occupied. This homeownership rate is 51% higher than the state average of 55.8%.
Race & Ethnicity
Castaic CDP is a highly diverse community where no single racial or ethnic group constitutes a majority of the population. Hispanic or Latino residents account for 36.2%. The Black or African American population (1.5%) is well below the state average of 5.3%.
Education
41.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 13% higher than the state rate of 36.5%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 93.1%.
Data Sources & Methodology
All demographic data for Castaic CDP, California is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against California state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,577 Census-designated places in California. For official data, visit data.census.gov.
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Frequently Asked Questions
What is the population of Castaic CDP, California?
Castaic CDP, California has a population of 18,479 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Castaic CDP, CA?
The median household income in Castaic CDP is $132,153, which is 68% higher the national median of $78,538.
What is the poverty rate in Castaic CDP, CA?
The poverty rate in Castaic CDP is 4.0%. This means approximately 745 residents live below the federal poverty line.
What is the racial makeup of Castaic CDP, California?
Castaic CDP's population is 43.1% White, 1.5% Black, 36.2% Hispanic/Latino, and 11.5% Asian.
What is the median home value in Castaic CDP, CA?
The median home value in Castaic CDP is $710,400. The home-value-to-income ratio is 5.4x.
How educated is Castaic CDP, California?
41.4% of adults (25+) in Castaic CDP hold a bachelor's degree or higher, and 12.0% hold a graduate or professional degree.