Castle Hill, California Population 2024

1,010

Castle Hill is a city located in Contra Costa County California. Castle Hill has a 2024 population of 1,010. Castle Hill is currently declining at a rate of annually and its population has decreased by -13.23% since the most recent census, which recorded a population of 1,164 in 2020.

The average household income in Castle Hill is $270,330 with a poverty rate of 0.79%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Castle Hill is 43.2 years, 42.7 years for males, and 43.8 years for females.

Castle Hill Demographics

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

  • White: 68.42%
  • Two or more races: 12.97%
  • Asian: 12.48%
  • Black or African American: 6.14%
  • Native American:
  • Native Hawaiian or Pacific Islander:
  • Other race:
Land Area (mi²)
0.7 sq mi
Density (mi²)
1,388.90/sq mi
Growth Since 2020
-13.23% (-154)
The current population of Castle Hill, California is 1,010 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 1,164.

Castle Hill, California Population 2024

Population by Race

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Race
Population
Percentage (of total)
White69168.42%
Two or more races13112.97%
Asian12612.48%
Black or African American626.14%
Native American
Native Hawaiian or Pacific Islander
Other race
showing: 7 rows

White

Two or more races

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

Other race

Castle Hill Population by Race

Castle Hill Population Pyramid 2024

Castle Hill Median Age

43.2

Total

42.7

Male

43.8

Female

Castle Hill Adults

There are 712 adults, (255 of whom are seniors) in Castle Hill.

Castle Hill Age Dependency

121

Age Dependency Ratio

55.8

Old Age Dependency Ratio

65.2

Child Dependency Ratio

Castle Hill Sex Ratio

Female55054.46%
Male46045.54%

Castle Hill Population by Age

Castle Hill Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All3802.6495.54.5
Married3013.0794.45.6
Non Family7901000
Male000
Female000
showing: 5 rows

3.07

Average Family Size

2.64

Average Household Size

95.5%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Castle Hill Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Castle Hill Educational Attainment by Sex (over 25)

Castle Hill Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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

The highest rate of bachelors degrees is among asian people with a rate of 100%.

Castle Hill Educational Attainment by Race

All

Male

Female

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$156,875

Average Earnings

$149,712

Average Male

$177,841

Average Female

Castle Hill Earnings by Educational Attainment

Castle Hill Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Castle Hill Language

80.13% of Castle Hill residents speak only English, while 19.87% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 14.72% of the population.

Castle Hill Language

Castle Hill Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White67581.19%
showing: 1 rows

0.79%

Overall Poverty Rate

1.09%

Male Poverty Rate

0.55%

Female Poverty Rate

Poverty in Castle Hill

The race most likely to be in poverty in Castle Hill is White, with 1.19% below the poverty level.

The race least likely to be in poverty in Castle Hill is White, with 1.19% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was . Among those working part-time, it was 5.31%, and for those that did not work, the poverty rate was 0.85%.

Castle Hill Poverty

rate

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Rate
Poverty
Less Than 9th Grade
High School4.35%
Some College
Bachelors or Greater
showing: 4 rows

Castle Hill Poverty Rate by Education

rate

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Rate
Poverty
Male Employed1.42%
Male Unemployed
Female Employed1.29%
Female Unemployed
showing: 4 rows

Castle Hill Poverty Rate by Employment Status and Sex

Castle Hill Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Castle Hill Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

88.2%

Overall Marriage Rate

94.0%

Male Marriage Rate

83.7%

Female Marriage Rate

Castle Hill Married by Age and Sex

male

female

Castle Hill Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 55-64.

Castle Hill Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Castle Hill Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

57

Number of Veterans

57

Male Veterans

Female Veterans

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Castle Hill Veterans by War

count

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Castle Hill Veterans by Age

count

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Castle Hill Veterans by Race

Castle Hill Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

Veteran Poverty Rate

28.07%

Veteran Disability Rate

Castle Hill Veterans by Education

LaborForceParticipation

62.2%

Labor Force Participation

62.2%

Employment Rate

0%

Unemployment Rate

Castle Hill Employment by Age

LaborForceParticipation

Castle Hill Employment by Race

LaborForceParticipation

Castle Hill 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

60.2%

Born in Castle Hill

80.3%

Native Born

19.7%

Foreign Born

3.17%

Non Citizen

16.53%

Naturalized

Place of Birth

80.3% of Castle Hill residents were born in the United States, with 60.2% having been born in California. 3.17% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Castle Hill Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
20241,010
20231,010
20221,010909.78%
2021920-244-20.96%
20201,164-262-18.37%
20191,42628124.54%
20181,145-87-7.06%
20171,232302.5%
20161,202-2-0.17%
20151,204-19-1.55%
20141,223
20131,22350.41%
20121,218-151-11.03%
20111,369705.39%
20101,299
showing: 15 rows

Castle Hill Population by Year