Castle Rock, Douglas County, Colorado Population and Demographics

In this article, we'll explore the population statistics for Castle Rock, Colorado, including popular demographics data like median age, number of households, household income, gender, employment and unemployment rates, occupations, religion, and more.

We are using the latest American Community Survey (ACS) 5-Year survey data from the US Census Bureau, which is accurate up to 2021.

Table of Contents

Population

There is a lot of data that lets us see how many people live in Castle Rock, Colorado. The most basic data is the total population, which is the total number of people living in Castle Rock, Colorado. The estimated population of Castle Rock, Colorado is 71,037 people, with a median age of 35.7.

We can look at the total population in Castle Rock over the last 5 years to see how much it has changed.

Year Population Change 5-Year Change
2021
71,037
+8.99%
+24.03%
2020
65,176
+4.42%
-
2019
62,417
+4.59%
-
2018
59,680
+4.2%
-
2017
57,274
- -

Population of Castle Rock, Colorado by Race and Ethnicity

We can also look at how the population has changed over the last 5 years by each of the race/ethnicity types as defined by the US Census Bureau.

Race 2021 2017 Change
White
81.6%
84.2%
-3.09%
Black/African American
0.5%
1.2%
-58.33%
Native
0.3%
0.1%
+200.00%
Hispanic
11%
10.2%
+7.84%
Asian
2%
1.7%
+17.65%
Hawaiian/Pacific Islander
0.2%
0.1%
+100.00%
Two Or More Races
3.8%
2.4%
+58.33%
Other
0.6%
0.1%
+500.00%

This data can be very important for a number of reasons, including social and economic research, planning and development, and marketing to a multi-cultural population.

Note that the Native group includes both Native American and Alaskan Native people.

Population of Castle Rock, Colorado by Age and Gender

The age and gender of a population is another interesting demographic statistic because it lets us track trends in the population over time. For example, we can see how the population has changed over the last 5 years by median age as a total, and also by male and female.

Year Total Male Female
2021 35.7 +0.56% 35.6 +2.89% 35.9 -1.64%
2020 35.5 -0.84% 34.6 -1.14% 36.5 -0.27%
2019 35.8 +1.7% 35 +2.04% 36.6 +1.67%
2018 35.2 +1.15% 34.3 +1.18% 36 +1.12%
2017 34.8 - 33.9 - 35.6 -

The median age of Castle Rock, Colorado gives you an idea of the age distribution, with half of the population being older than the median age and half being younger.

This can then be used to infer and compare against birth rates, parent ages, and more metrics to understand the population. For example, an increasing median age indicates an aging population, which can be a sign of a declining population in terms of birth rates and workforce participation.

Age 2021 2017
(Years) Male Female Male Female
0 to 9 5,022 +5.87% 4,546 +24.21% 5,308 5,743
10 to 19 4,488 +15.67% 4,662 +16.21% 5,223 5,454
20 to 29 3,032 +33.11% 2,772 +11.76% 4,162 3,031
30 to 39 4,277 +23.74% 4,633 +24.76% 5,377 5,874
40 to 49 4,551 +27.29% 4,458 +22.74% 5,908 5,560
50 to 59 3,494 +30.71% 3,793 +11.47% 4,652 4,230
60 to 69 2,004 +28.82% 2,380 +33.16% 2,612 3,265
70+ 1,434 +36.16% 1,728 +44.26% 2,013 2,625

Median Household Income

The latest median household income of Castle Rock, Colorado is $121,388.00.

In simple terms, the median income is the middle income of a group of people. Half of the people in the group make more than the median income, and half make less. The median income is a good indicator of the overall income of a group of people, and can be used to compare against other metrics such as the average income, per capita income, and more.

Median Income by Age

We can also look at the median income by age to see how the median income varies by age, and how it compares to the overall median income for Castle Rock.

  • Under 25
    $42,321.00
  • 25 to 44
    $131,882.00
  • 45 to 64
    $133,870.00
  • 65 and over
    $70,722.00

Average Household Income

Whenever we ask what is the average household income in Castle Rock, we are actually talking about the mean household income.

This is calculated by adding up all the incomes of all the households in Castle Rock, and then dividing that number by the total number of households. This is a good way to get a general idea of the average income of a group of people, but it can be skewed by a very high or very low incomes.

The average household income of Castle Rock, Colorado is currently $139,034.00.

In terms of accurately summarizing income at a geographic level, the median income is a better metric than the average income because it isn't affected by a small number of very high or very low incomes.

If you had an area where the average income was greater than the median, it can mean that there is significant income inequality, with income being concentrated in a small number of wealthy households.

19.66% of households in Castle Rock are classed as high income households (making $200,000+ per year).

Household Income Tiers

The US Census Bureau divides households into income tiers based on the median income for the area. This is a good way to compare the income of Castle Rock against other areas.

  • Less than $24,999
    5.49%
  • $25,000 to $49,999
    11.00%
  • $50,000 to $74,999
    11.73%
  • $75,000 to $99,999
    12.66%
  • $100,000 to $149,999
    23.62%
  • $150,000 to $199,999
    15.84%
  • $200,000 or more
    19.66%

Per Capita Income

The per capita income in Castle Rock is $49,138.00.

Per capita income is the average income of a person in a given area. It is calculated by dividing the total income of Castle Rock by the total population of Castle Rock.

This is different from the average or mean income because it includes and accounts for all people in Castle Rock, Colorado, including people like children, the elderly, unemployed people, retired people, and more.

Education Levels

We can also look at the education levels in Castle Rock to see how many people have a high school degree, a bachelor's degree, or a graduate degree.

Educational attainment is a good indicator of the overall education level of a population, and can be used to compare against other metrics such as the average income, per capita income, and more to see how education levels affect income, unemployment rates, and more.

  • Master's degree or higher
    18.78%
  • Bachelor's degree
    52.56%
  • Some college or associate's degree
    9.64%
  • High school diploma or equivalent
    17.34%
  • Less than high school diploma
    1.67%

Employment

Employment rates are all based around the total population in Castle Rock that are over the age of 16.

The total population of Castle Rock over the age of 16 is 53,871.

Of those people, a total of 72.70% are working or actively looking for work. This is called the labor force participation rate.

The participation rate is a useful market measure because it shows the relative amount of labor resources available to the economy.

The employment to total population rate in Castle Rock is 69.40%.

Employment by Age

We can look at the employment rates by age to see how it compares to the overall employment rate.

Age Population Participation Unemployment Rate
16 to 19 years 4,562 56.80% 7.90%
20 to 24 years 3,658 83.90% 12.80%
25 to 29 years 3,535 84.30% 2.50%
30 to 34 years 5,613 84.30% 7.70%
35 to 44 years 11,498 83.70% 1.30%
45 to 54 years 10,171 88.90% 1.80%
55 to 59 years 4,319 76.90% 2.50%
60 to 64 years 3,340 69.40% 6.90%
65 to 74 years 4,325 29.80% 4.00%
75 years and over 2,850 7.80% 0.00%

Employment by Race

Another very interesting employment statistic we can look at is the employment and unemployment rates by race in Castle Rock. The table below shows the rates for each of the ethnicity groups types defined by the US Census Bureau.

Age Population Participation Unemployment Rate
White 47,860 72.60% 4.20%
Black or African American 426 79.30% 5.60%
American Indian and Alaska Native 188 65.40% 0.00%
Asian 1,140 73.80% 1.30%
Native Hawaiian and Other Pacific Islander 111 76.60% 0.00%
Other 1,360 73.40% 2.00%
Two or more races 2,786 74.40% 4.50%
Hispanic or Latino 5,807 70.40% 2.20%
Not Hispanic or Latino 44,557 72.90% 4.40%

Occupations

In this section we can look at the most common occupations in Castle Rock as well as the gender breakdown and earnings of them.

The total population of civilian employees that are 16 years old or older in Castle Rock is 37,391, with median earnings of $59,287.00.

Women in Castle Rock, Colorado earning approximately 55.90% of the men's earnings.

Population Earnings
Total 37,391 $59,287.00
Male 20,139 $80,111.00
Female 17,252 $44,769.00

Occupations by Category

In the table below, we can break down the population and earnings even further by occupation. The list of occupation categories below will show you how many people are employed in each category and the median earnings of each profession.

Occupation Employed Earnings
Management 6,759 $110,394.00
Business and Financial 3,588 $85,718.00
Computer and Mathematical 2,549 $110,408.00
Architecture and Engineering 895 $96,426.00
Life, Physical, and Social Science 203 $54,152.00
Community and Social Service 427 $55,259.00
Legal 363 $82,837.00
Educational and Library 2,419 $38,941.00
Arts, Design, Entertainment, Sports, and Media 922 $65,417.00
Healthcare Practitioners 1,585 $58,996.00
Healthcare Support 898 $31,351.00
Firefighters and Protective Service 309 $82,566.00
Law Enforcement 571 $77,072.00
Food Preparation and Serving 1,942 $14,706.00
Building and Grounds Cleaning 563 $18,672.00
Personal Care and Service 1,137 $32,789.00
Sales 4,868 $45,156.00
Office and Administrative Support 3,299 $41,542.00
Farming, Fishing, and Forestry 8 $0.00
Construction and Extraction 987 $66,985.00
Installation, Maintenance, and Repair 642 $58,452.00
Production 868 $34,571.00
Transportation and Material Moving 777 $50,572.00

Occupations by Gender

The table below shows the same occupations from the list above, but we have split them by male and female to see how many male and females work in each occupation, the median earnings, and the male to female ratio of earnings.

That last metric is important because it can be used to look at the gender pay gap between men and women.

Occupation Male Female
Population Earnings Population Earnings
Management 4,437 $119,784.00 2,322 $86,801.00
Business and Financial 1,990 $101,216.00 1,598 $67,985.00
Computer and Mathematical 2,183 $115,492.00 366 $81,759.00
Architecture and Engineering 811 $96,603.00 84 $89,000.00
Life, Physical, and Social Science 103 $53,750.00 100 $54,412.00
Community and Social Service 67 $56,563.00 360 $54,500.00
Legal 176 $125,093.00 187 $82,740.00
Educational and Library 465 $49,158.00 1,954 $34,038.00
Arts, Design, Entertainment, Sports, and Media 449 $93,555.00 473 $51,391.00
Healthcare Practitioners 202 $47,500.00 1,383 $59,880.00
Healthcare Support 82 $40,147.00 816 $31,334.00
Firefighters and Protective Service 217 $85,980.00 92 $2,917.00
Law Enforcement 529 $77,363.00 42 $63,750.00
Food Preparation and Serving 1,074 $17,833.00 868 $12,500.00
Building and Grounds Cleaning 325 $9,957.00 238 $21,833.00
Personal Care and Service 406 $33,924.00 731 $21,550.00
Sales 2,391 $72,746.00 2,477 $25,954.00
Office and Administrative Support 907 $49,030.00 2,392 $39,003.00
Farming, Fishing, and Forestry 8 $0.00 0 $0.00
Construction and Extraction 976 $67,147.00 11 $0.00
Installation, Maintenance, and Repair 635 $58,661.00 7 $0.00
Production 554 $48,500.00 314 $28,862.00
Transportation and Material Moving 645 $51,689.00 132 $22,045.00

Households and Family Size

A household defined bu the US Census Bureau is a group of people who occupy a housing unit. A housing unit is a house, apartment, mobile home, group of rooms, or single room occupied as separate living quarters.

There are currently 24,867 households in Castle Rock, with an average household size of 2.83 people.

A family is defined as a group of two or more people related by birth, marriage, or adoption who live together in the same household.

There are 19,112 families in Castle Rock with an average family size of 3.23 people.

Households by Marital Status

The four categories of household by marital status are:

  • Married-couple family
  • Male householder with no spouse present
  • Female household with no spouse present
  • Nonfamily household

The table below shows the total number of households and families, with the average sizes of each.

Married Male Female Nonfamily
Total Households 16,497 961 1,654 5,755
Average Household Size 3.32 3.47 2.93 1.29
Total Families 16,497 961 1,654 0
Average Household Size 3.3 2.97 2.72 0

Poverty

Of the 19,112 families in Castle Rock, 2.20% are considered to be below the poverty threshold.

The table below shows the latest poverty thresholds in Castle Rock:

Household Size Poverty Threshold
1 Person $14,580.00
2 People $19,720.00
3 People $24,860.00
4 People $30,000.00
5 People $35,140.00
6 People $40,280.00
7 People $45,420.00
8 People $50,560.00

Housing

There are 25,606 housing units in Castle Rock, Colorado.

The table below shows the split between occupied and vacant units:

Total Percentage
Occupied 24,867 97.11%
Vacant 739 2.89%

20.77% of the total 25,606 housing units in Castle Rock are rental units. This is approximately 5,318 properties.

For owner-occupied housing units, a total of 19,468 are occupied by the owner - or 76.03% of the total.

Rental Rates

The median rent for a property in Castle Rock is $1,740.00.

In the chart below, we can look at the number of rental properties in Castle Rock that fall into a particular rent range. These can then be used to compare with other areas, or to see how they have changed over time.

  • No rent paid
    81
  • Less than $500
    81
  • $500 to $999
    335
  • $1,000 to $1,499
    1,378
  • $1,500 to $1,999
    1,799
  • $2,000 to $2,499
    865
  • $2,500 to $2,999
    419
  • $3,000 or more
    441

Property Value

The median value of a property in Castle Rock is $472,800.00.

Just like with rental rates, we can look at the number of properties in Castle Rock that fall into a particular value range.

  • Less than $50,000
    196
  • $50,000 to $99,999
    38
  • $100,000 to $149,999
    63
  • $150,000 to $199,999
    167
  • $200,000 to $299,999
    1,047
  • $300,000 to $499,999
    9,838
  • $500,000 to $999,999
    7,717
  • $1,000,000 or more
    402

Property Age

We can also look at the age of properties in Castle Rock. The chart below shows the number of properties in Castle Rock that fall into a particular age range.

  • 1939 or earlier
    210
  • 1940 to 1949
    67
  • 1950 to 1959
    240
  • 1960 to 1969
    396
  • 1970 to 1979
    1,168
  • 1980 to 1989
    1,823
  • 1990 to 1999
    4,836
  • 2000 to 2009
    9,969
  • 2010 to 2013
    6,686
  • 2014 or later
    211

Vehicles per Household

The number of vehicles available per household can be a good indicator of the level of affluence in an area. The chart below shows the number of households in Castle Rock that have a particular number of vehicles available.

  • No vehicles available
    557
  • 1 vehicle available
    5,105
  • 2 vehicles available
    11,528
  • 3 or more vehicles available
    7,677

Commuting to Work

In this section, we can also look at how people in Castle Rock get to work. The chart below shows the number of people in Castle Rock that commute to work in a particular way.

29.3 minutes is the average travel time to work for people in Castle Rock.

These commute times can be compared to other date like income and educational levels to see how they relate to each other and if there are any trends in the data that might suggest a correlation.

  • Less than 5 minutes
    957
  • 5 to 9 minutes
    2,741
  • 10 to 14 minutes
    3,997
  • 15 to 19 minutes
    2,639
  • 20 to 24 minutes
    3,382
  • 25 to 29 minutes
    2,863
  • 30 to 34 minutes
    4,394
  • 35 to 39 minutes
    1,725
  • 40 to 44 minutes
    1,143
  • 45 to 59 minutes
    4,239
  • 60 to 89 minutes
    1,720
  • 90 or more minutes
    699

Summary

We've covered a LOT of demographic and population data for Castle Rock, Colorado in this article! Hopefully you have found it very useful in your research of the area.

If you use any of the data found on this page, please consider linking back to USPopulation.org as the source and if you have any feedback or data requests, click here to contact us.