State
County
Land Area
34.3 sq mi
Density
2,200.40/sq mi
2020 Growth Rate
4.84%
Growth Since 2010
56.44%
Rank in State
Rank in Country
Castle Rock is a city located in Colorado. With a 2020 population of 75,452, it is the 15th largest city in Colorado and the 481st largest city in the United States. Castle Rock is currently growing at a rate of 4.84% annually and its population has increased by 56.44% since the most recent census, which recorded a population of 48,231 in 2010. Castle Rock reached it's highest population of 75,452 in 2021. Spanning over 34 miles, Castle Rock has a population density of 2,200 people per square mile.
The average household income in Castle Rock is $127,791 with a poverty rate of 3.89%. The median rental costs in recent years comes to $1,536 per month, and the median house value is $422,100. The median age in Castle Rock is 35.8 years, 35 years for males, and 36.6 years for females. For every 100 females there are 98.3 males.
According to the most recent ACS, the racial composition of Castle Rock was:
| Race | Population | Percentage |
|---|---|---|
| White | 57,038 | 91.38% |
| Two or More Races | 1,713 | 2.74% |
| Some Other Race | 1,531 | 2.45% |
| Asian | 1,134 | 1.82% |
| Black or African American | 672 | 1.08% |
| American Indian and Alaska Native | 225 | 0.36% |
| Native Hawaiian and Other Pacific Islander | 104 | 0.17% |
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 21,336 | 2.89 | 77.7 |
| Married | 13,909 | 3.44 | 88.8 |
| Non Family | 4,783 | 1.31 | 56 |
| Female | 1,691 | 2.78 | 55.5 |
| Male | 953 | 3.18 | 63.4 |
3.29
Average Family Size
2.89
Average Household Size
| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 342 | 0.86% |
| 9th to 12th Grade | 629 | 1.59% |
| High School Graduate | 5,723 | 14.46% |
| Some College | 9,506 | 24.02% |
| Associates Degree | 4,287 | 10.83% |
| Bachelors Degree | 12,953 | 32.73% |
| Graduate Degree | 6,132 | 15.50% |
| Name | Total | High School | Bachelors |
|---|---|---|---|
| White | 33,764 | 33,234 | 16,597 |
| Hispanic | 3,657 | 3,286 | 1,393 |
| Other Race | 1,028 | 905 | 318 |
| Asian | 861 | 816 | 477 |
| Multiple Races | 666 | 655 | 357 |
| Black | 410 | 385 | 194 |
| Native American | 156 | 147 | 15 |
| Islander | 71 | 71 | 29 |
The highest rate of high school graduation is among islander people with a rate of 100.00%.
The highest rate of bachelors degrees is among asian people with a rate of 55.40%.
$57,183
Average Earnings
$74,614
Average Male
$42,672
Average Female
92.51% of Castle Rock residents speak only English, while 7.49% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 4.73% of the population.
| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 51,842 | 1,643 | 3.17% |
| Hispanic | 6,283 | 570 | 9.07% |
| Black | 651 | 130 | 19.97% |
| Multiple | 1,685 | 47 | 2.79% |
| Asian | 1,121 | 45 | 4.01% |
| Other | 1,421 | 18 | 1.27% |
| Native | 181 | 17 | 9.39% |
| Islander | 104 | 2 | 1.92% |
3.89%
Overall Poverty Rate
3.30%
Male Poverty Rate
4.47%
Female Poverty Rate
The race most likely to be in poverty in Castle Rock is Black, with 19.97% below the poverty level.
The race least likely to be in poverty in Castle Rock is Other, with 1.27% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 1.45%. Among those working part-time, it was 4.37%, and for those that did not work, the poverty rate was 7.65%.
61.1%
Overall Marriage Rate
62.9%
Male Marriage Rate
59.4%
Female Marriage Rate
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 35-44.
| Name | Veterans | % of Total |
|---|---|---|
| White | 4,060 | 9.96% |
| Hispanic | 340 | 7.84% |
| 2 or More | 176 | 23.69% |
| Black | 66 | 14.16% |
| Other | 62 | 5.21% |
| Indian | 41 | 26.28% |
2.15%
Veteran Poverty Rate
19.35%
Veteran Disability Rate
74.3%
Labor Force Participation
71.8%
Employment Rate
2.9%
Unemployment Rate
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
94.97%
Native Born
5.03%
Foreign Born
2.28%
Non Citizen
2.75%
Naturalized
94.97% of Castle Rock residents were born in the United States, with 37.92% having been born in Colorado. 2.28% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.
| Year | Population | Growth | Annual Growth Rate |
|---|---|---|---|
| 2021 | 75,452 | 3,484 | 4.84% |
| 2020 | 71,968 | 3,484 | 5.09% |
| 2019 | 68,484 | 3,484 | 5.36% |
| 2018 | 65,000 | 2,703 | 4.34% |
| 2017 | 62,297 | 3,013 | 5.08% |
| 2016 | 59,284 | 2,109 | 3.69% |
| 2015 | 57,175 | 2,021 | 3.66% |
| 2014 | 55,154 | 2,497 | 4.74% |
| 2013 | 52,657 | 1,640 | 3.21% |
| 2012 | 51,017 | 1,324 | 2.66% |
| 2011 | 49,693 | 1,107 | 2.28% |
| 2010 | 48,586 | 28,362 | 9.16% |
| 2000 | 20,224 | 11,516 | 8.79% |
| 1990 | 8,708 | 4,787 | 8.31% |
| 1980 | 3,921 | 2,421 | 10.09% |
| 1970 | 1,500 | 300 | 2.26% |
| 1960 | 1,200 | 500 | 5.54% |
| 1950 | 700 | 100 | 1.55% |
| 1940 | 600 | 0.00% |