Castle Hill is a city located in Contra Costa County California. Castle Hill has a 2024 population of 856. Castle Hill is currently declining at a rate of -8.25% annually and its population has decreased by -26.46% 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.
According to the most recent ACS, the racial composition of Castle Hill was:
White
Two or more races
Asian
Black or African American
Native American
Native Hawaiian or Pacific Islander
Other race
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 380 | 2.64 | 95.5 | 4.5 |
| Married | 301 | 3.07 | 94.4 | 5.6 |
| Non Family | 79 | 0 | 100 | 0 |
| Male | 0 | 0 | 0 | 0 |
| Female | 0 | 0 | 0 | 0 |
3.07
Average Family Size
2.64
Average Household Size
95.5%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
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%.
All
Male
Female
$156,875
Average Earnings
$149,712
Average Male
$177,841
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
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.
rate
0.79%
Overall Poverty Rate
1.09%
Male Poverty Rate
0.55%
Female Poverty Rate
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 0%. Among those working part-time, it was 5.31%, and for those that did not work, the poverty rate was 0.85%.
Married
Widowed
Divorced
Separated
NeverMarried
88.2%
Overall Marriage Rate
94.0%
Male Marriage Rate
83.7%
Female Marriage Rate
male
female
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.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
0%
Veteran Poverty Rate
28.07%
Veteran Disability Rate
LaborForceParticipation
62.2%
Labor Force Participation
62.2%
Employment Rate
0%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
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.
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
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.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2024 | 856 | -77 | -8.25% |
| 2023 | 933 | -77 | -7.62% |
| 2022 | 1,010 | 90 | 9.78% |
| 2021 | 920 | -244 | -20.96% |
| 2020 | 1,164 | -262 | -18.37% |
| 2019 | 1,426 | 281 | 24.54% |
| 2018 | 1,145 | -87 | -7.06% |
| 2017 | 1,232 | 30 | 2.5% |
| 2016 | 1,202 | -2 | -0.17% |
| 2015 | 1,204 | -19 | -1.55% |
| 2014 | 1,223 | 0 | 0% |
| 2013 | 1,223 | 5 | 0.41% |
| 2012 | 1,218 | -151 | -11.03% |
| 2011 | 1,369 | 70 | 5.39% |
| 2010 | 1,299 | 0 | 0% |