Castaic, CA
Population 18,479 · California
About Castaic, CA
Castaic is a mid-sized city located in California with a population of 18,479 residents according to the latest US Census Bureau American Community Survey data. The median household income is $132,153 per year, which is 76% above the national median of $75,149. The median age of 37.2 years is close to the US median age of 38.9 years.
Housing Market Overview
The housing market in Castaic features a median home value of $710,400, which is 190% above the national median of $244,900. This places Castaic in a higher-cost housing market, where property demand often outpaces supply. Median monthly rent is $1,751, 51% above the national average of $1,163/month. Of the 5,869 total housing units, 84% are owner-occupied (4,910 units) and 16% are renter-occupied (906 units). The high homeownership rate suggests a stable, established residential community.
Economy & Employment
The local economy in Castaic shows an unemployment rate of 5.1%, which is near the national rate of 3.7%. The poverty rate stands at 4.0%, below the national average of 12.4%, reflecting generally favorable economic conditions. Workers in Castaic have an average one-way commute time of 31.1 minutes.
Education & Demographics
41.4% of Castaic residents aged 25 and older hold a bachelor's degree or higher, compared to the national average of 33.7%. This is in line with national trends in educational attainment. The community's demographic composition includes 24.8% White, 3.9% Hispanic or Latino, 0.5% Black or African American, and 10.2% Asian residents, with 21.4% of the population being foreign-born.
Cost of Living in Castaic, CA
Compared to national averages, Castaic has a median household income of $132,153 (76% above the national median of $75,149). Home values average $710,400, which is 190% above the national median. Monthly rent at $1,751 is 51% above the US average of $1,163. Within California, Castaic's income is 35% above the state average of $97,829, and home values are 9% above the state median of $653,874.
Why Live in Castaic, CA?
Castaic offers a strong local economy with a median household income of $132,153, well above the national average, and a well-educated community where 41.4% of residents hold a bachelor’s degree or higher, and a low poverty rate of 4.0%, better than the national average.
Potential considerations include a competitive housing market where the typical home costs $710,400. However, Castaic’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
Castaic has a population of 18,479 with a median age of 37.2 years. Compare Castaic with other cities to see how it stacks up, or explore all cities in California.
Similar Cities Near Castaic
Cities in California with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| Arroyo Grande | 18,412 | $103,258 | $758,100 | Compare |
| Coronado | 18,558 | $135,056 | $1,998,900 | Compare |
| Arcata | 18,578 | $48,731 | $466,600 | Compare |
| Pinole | 18,835 | $120,833 | $697,100 | Compare |
| Chowchilla | 18,876 | $63,308 | $331,500 | Compare |
| Phelan | 18,059 | $83,759 | $357,200 | Compare |
| Stanford | 17,958 | $70,651 | $2,000,001 | Compare |
| Olivehurst | 19,071 | $80,477 | $337,300 | Compare |
Demographics
Racial & Ethnic Composition
Economy & Education
Housing
Other Cities in California
Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
Compare Castaic With Other Cities
Frequently Asked Questions about Castaic
What is the population of Castaic, CA?
The population of Castaic, CA is 18,479 according to the latest US Census Bureau American Community Survey estimates. This makes it a mid-sized city in California.
What is the median household income in Castaic?
The median household income in Castaic, CA is $132,153 per year, which is 76% above the national median of $75,149.
What is the median home value in Castaic?
The median home value in Castaic, CA is $710,400, which is 190% above the national median of $244,900. The majority of housing units are owner-occupied.
What is the average rent in Castaic?
The median monthly rent in Castaic, CA is $1,751, which is 51% above the national average of $1,163/month.
What is the unemployment rate in Castaic?
The unemployment rate in Castaic, CA is 5.1%, compared to the national average of 3.7%. Job seekers may want to research the dominant industries in the area.
Is Castaic, CA a good place to live?
Castaic offers above-average incomes, a competitive housing market, and growing employment opportunities. With a population of 18,479 and a median age of 37.2, the city appeals to a broad range of residents.
How educated is Castaic, CA?
41.4% of residents in Castaic aged 25 and older hold a bachelor's degree or higher, compared to the national average of 33.7%. This above-average educational attainment often reflects a knowledge-based local economy.
What is the cost of living in Castaic?
Key cost-of-living indicators for Castaic, CA: median home value is $710,400 (190% above national), median rent is $1,751/month, and median household income is $132,153. The home-value-to-income ratio is 5.4x, a moderate figure by national standards.
What is the poverty rate in Castaic?
The poverty rate in Castaic, CA is 4.0%, compared to the national average of 12.4%. This below-average poverty rate reflects generally favorable economic conditions in the community.
How diverse is Castaic, CA?
Castaic's population is 24.8% White, 3.9% Hispanic or Latino, 0.5% Black or African American, 10.2% Asian, and 1.5% two or more races. 21.4% of residents are foreign-born.