Castaic, California Population 2024

18,581

Castaic Demographics

According to the most recent ACS, the racial composition of Castaic was:

  • White: 60.02%
  • Two or more races: 15.16%
  • Asian: 11.45%
  • Other race: 10.28%
  • Black or African American: 1.9%
  • Native American: 1.18%
  • Native Hawaiian or Pacific Islander: 0.02%
Land Area (mi²)
7.3 sq mi
Density (mi²)
2,558.80/sq mi
Growth Since 2020
0.55% (102)
The current population of Castaic, California is 18,581 based on our projections of the latest US Census estimates (released May 2024). The last official US Census in 2020 recorded the population at 18,479.

Population by Race

Race
Population
Percentage (of total)
White11,18960.02%
Two or more races2,82715.16%
Asian2,13411.45%
Other race1,91610.28%
Black or African American3541.9%
Native American2201.18%
Native Hawaiian or Pacific Islander30.02%

White

Two or more races

Asian

Other race

Black or African American

Native American

Native Hawaiian or Pacific Islander

Castaic Population by Race

Castaic Population Pyramid 2024

Castaic Median Age

36.9

Total

36.7

Male

37

Female

Castaic Adults

There are 13,585 adults, (1,992 of whom are seniors) in Castaic.

Castaic Age Dependency

60.8

Age Dependency Ratio

17.2

Old Age Dependency Ratio

43.6

Child Dependency Ratio

Castaic Sex Ratio

Female9,36650.24%
Male9,27749.76%

Castaic Population by Age

Castaic Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All5,7753.2384.315.7
Married4,0063.6290.59.5
Non Family9171.1560.639.4
Female5403.5679.120.9
Male3123.7683.716.3

3.52

Average Family Size

3.23

Average Household Size

84.3%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Castaic Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade4863.94%
Associates Degree1,33410.81%
Bachelors Degree3,52928.6%
Graduate Degree1,49512.12%
High School Graduate2,22618.04%
Less Than 9th Grade3602.92%
Some College2,90823.57%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Castaic Educational Attainment by Sex (over 25)

Castaic Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White5,7215,5512,668
Hispanic3,9403,424961
2+ Races1,7031,458472
Asian1,6211,5221,033
Other Race1,122926184
Black24824889
Native American16514161
Islander330

The highest rate of high school graduation is among black people with a rate of 100%.

The highest rate of bachelors degrees is among asian people with a rate of 63.73%.

Castaic Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$79,944$102,147$62,825
Graduate Degree$98,750$115,139$88,015
High School Graduate$54,196$70,675$37,326
Less Than 9th Grade$63,080$63,668$0
Overall$69,928$85,579$56,871
Some College$62,033$77,782$55,197

$69,928

Average Earnings

$85,579

Average Male

$56,871

Average Female

Castaic Earnings by Educational Attainment

Castaic Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Castaic Language

68.24% of Castaic residents speak only English, while 31.76% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 19.58% of the population.

Castaic Language

Castaic Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White8,4303143.72%
Hispanic6,4261862.89%
Asian2,1341637.64%
Multiple2,7961314.69%
Black354298.19%
Other1,916201.04%
Islander33100%

3.74%

Overall Poverty Rate

4.35%

Male Poverty Rate

3.13%

Female Poverty Rate

Poverty in Castaic

The race most likely to be in poverty in Castaic is Islander, with 100% below the poverty level.

The race least likely to be in poverty in Castaic is Other, with 1.04% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.41%. Among those working part-time, it was 2.85%, and for those that did not work, the poverty rate was 9.92%.

Castaic Poverty

rate

Rate
Poverty
Less Than 9th Grade7.92%
High School4.31%
Bachelors or Greater3.28%
Some College2.99%

Castaic Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed4.87%
Male Unemployed4%
Male Employed1.44%
Female Employed0.82%

Castaic Poverty Rate by Employment Status and Sex

Castaic Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$143,200$163,043
Households$132,429$151,276
Married Families$151,587$-999,999,999
Non Families$49,398$69,236

mean

median

Income by Household Type

Castaic Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

59.2%

Overall Marriage Rate

61.5%

Male Marriage Rate

56.9%

Female Marriage Rate

Castaic Married by Age and Sex

male

female

Castaic Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 45-54.

Castaic Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Castaic Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

507

Number of Veterans

481

Male Veterans

26

Female Veterans

War
Veterans
Second Gulf War145
Vietnam139
First Gulf War136
Korea11
World War II0

Castaic Veterans by War

count

Age Group
Veterans
35 to 54155
65 to 74103
55 to 6497
75+81
18 to 3471

Castaic Veterans by Age

count

Name
Veterans
% of Total
White3704.54%
Hispanic1072.44%
2+ Races834.26%
Black3411.89%
Asian181.04%
Other Race20.16%

Castaic Veterans by Race

Castaic Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.52%

Veteran Poverty Rate

21.5%

Veteran Disability Rate

Castaic Veterans by Education

LaborForceParticipation

68.8%

Labor Force Participation

64.9%

Employment Rate

5.4%

Unemployment Rate

Castaic Employment by Age

LaborForceParticipation

Castaic Employment by Race

LaborForceParticipation

Castaic Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

65.42%

Born in Castaic

78.89%

Native Born

21.11%

Foreign Born

4.33%

Non Citizen

16.78%

Naturalized

Place of Birth

78.89% of Castaic residents were born in the United States, with 65.42% having been born in California. 4.33% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Castaic Place of Birth

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
202418,581-31-0.17%
202318,612-31-0.17%
202218,6436263.47%
202118,017-462-2.5%
202018,479-921-4.75%
201919,4004792.53%
201818,921-378-1.96%
201719,299-230-1.18%
201619,5291600.83%
201519,3697504.03%
201418,6192041.11%
201318,415-195-1.05%
201218,6104402.42%
201118,170-845-4.44%
201019,01500%

Castaic Population by Year