Castaic is a CDP located in Los Angeles County, California. Castaic has a 2025 population of 18,550 . Castaic is currently declining at a rate of -0.17% annually but its population has increased by 0.38% since the most recent census, which recorded a population of 18,479 in 2020.
The average household income in Castaic is $156,900 with a poverty rate of 4.04%. The median age in Castaic is 37.2 years: 37.2 years for males, and 37.2 years for females. For every 100 females there are 100.9 males.
Data after 2023 is projected based on recent change
The racial composition of Castaic includes 54.69% White, 11.91% Asian, 11.72% other race, and smaller percentages for Black or African American, Native American and multiracial populations.
White (54.69%)
Two or more races (18.78%)
Asian (11.91%)
Other race (11.72%)
Black or African American (1.49%)
Native American (1.41%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 10,107 | 54.69% |
| Two or more races | 3,470 | 18.78% |
| Asian | 2,201 | 11.91% |
| Other race | 2,166 | 11.72% |
| Black or African American | 275 | 1.49% |
| Native American | 260 | 1.41% |
Married
Widowed
Divorced
Separated
Never Married
Castaic's average per capita income is $72,739. Household income levels show a median of $132,153. The poverty rate stands at 4.04%.
Name | Median | Mean |
|---|---|---|
| Married Families | $157,287 | - |
| Families | $144,610 | $168,680 |
| Households | $132,153 | $156,900 |
| Non Families | $51,771 | $71,859 |
Average Income
Median Household Income
Poverty Rate