Castaic vs South San Jose Hills

A side-by-side comparison of Castaic and South San Jose Hills: population, income, housing, and more.

Castaic and South San Jose Hills are places in California. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Castaic has the higher population (18,479 vs 17,451 in South San Jose Hills). Castaic has the higher median household income ($132,153 vs $94,740 in South San Jose Hills). Castaic has the higher median home value ($710,400 vs $540,400 in South San Jose Hills).

Population, income & housing

	Castaic	South San Jose Hills
Population	18,479	17,451
Median age	37.2 yrs	35.1 yrs
Median household income	$132,153	$94,740
Median home value	$710,400	$540,400
Median gross rent	$1,751	$1,840
Housing units	5,869	4,222
Homeownership rate	84.4%	79.3%
Bachelor's degree or higher	41.4%	12.2%
Unemployment rate	5.1%	8.5%

Trends (ACS 5-year, 2019–2023)

	Castaic	South San Jose Hills
Population	19,400 → 18,479 (-4.7%)	19,977 → 17,451 (-12.6%)
Median household income	$117,031 → $132,153 (+12.9%)	$70,218 → $94,740 (+34.9%)
Median home value	$553,600 → $710,400 (+28.3%)	$369,300 → $540,400 (+46.3%)
Median gross rent	$1,745 → $1,751 (+0.3%)	$1,573 → $1,840 (+17.0%)

Castaic

Population

19,40018,479

Median household income

$117,031$132,153

Median home value

$553,600$710,400

Median gross rent

$1,745$1,751

South San Jose Hills

Population

19,97717,451

Median household income

$70,218$94,740

Median home value

$369,300$540,400

Median gross rent

$1,573$1,840

Age & race/ethnicity

Age distribution (share)

	Castaic	South San Jose Hills
Under 5	6.8%	5.3%
5 to 17	19.0%	17.0%
18 to 24	7.6%	9.7%
25 to 34	13.2%	17.9%
35 to 44	13.2%	12.5%
45 to 54	14.3%	13.8%
55 to 64	14.3%	10.3%
65 to 74	7.6%	8.3%
75 and over	4.0%	5.2%

Race & ethnicity (share)

	Castaic	South San Jose Hills
White (non-Hispanic)	43.1%	2.1%
Black or African American	1.5%	1.0%
American Indian & Alaska Native	0.1%	0.0%
Asian	11.5%	11.7%
Native Hawaiian & Pacific Islander	0.0%	0.1%
Some other race	1.4%	0.1%
Two or more races	6.3%	0.4%
Hispanic or Latino	36.2%	84.7%

Educational attainment (age 25+)

Share of adults 25+

	Castaic	South San Jose Hills
No high school diploma	6.9%	34.4%
High school graduate	18.1%	31.6%
Some college or associate's	33.6%	21.8%
Bachelor's degree	29.3%	10.1%
Graduate or professional degree	12.0%	2.1%

Commute to work

How workers get to work (share)

	Castaic	South San Jose Hills
Drove alone	75.7%	77.7%
Carpooled	8.8%	14.2%
Public transit	0.4%	2.2%
Walked	0.5%	1.0%
Bicycle	0.0%	0.0%
Worked from home	12.5%	3.6%
Other means	2.1%	1.3%

Housing

Units in structure (share)

	Castaic	South San Jose Hills
1-unit, detached	85.6%	72.3%
1-unit, attached	1.4%	3.5%
2 to 4 units	0.1%	3.1%
5 to 19 units	3.6%	0.5%
20 or more units	6.3%	0.1%
Mobile home & other	2.9%	20.6%

Poverty & households

	Castaic	South San Jose Hills
Poverty rate	4.0%	12.8%
Average household size	3.18	4.28
Mean commute (minutes)	31	28
Median year structure built	1990	1963