Castle Rock, CO Profile: Facts & Data


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Castle Rock, Colorado - Basic Facts

The Town of Castle Rock had a population of 66,040 as of July 1, 2018. Castle Rock ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Colorado. See peer rankings below.

The primary coordinate point for Castle Rock is located at latitude 39.3761 and longitude -104.8535 in Douglas County. The formal boundaries for the Town of Castle Rock (see map below) encompass a land area of 33.86 sq. miles and a water area of 0 sq. miles. Douglas County is in the Mountain time zone (GMT -7). The elevation is 6,224 feet.

The Town of Castle Rock (GNIS ID: 2413179) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Colorado is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The Town of Castle Rock is located within Castle Rock Division of Douglas County.

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  1. Castle Rock 2018 Demographic Data
  2. Growth Rates for Castle Rock (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Colorado Research Tools (Easy Tools & Current Data)
  3. Colorado Data Comparison Tool - 2018 Demographics

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Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2018, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


Castle Rock, CO Data & Demographics (As of July 1, 2018)


Total Population 66,040
Population in Households 65,553
Population in Familes 58,838
Population in Group Qrtrs 487
Population Density2 1,950
Diversity Index3 36


Median Household Income $101,423
Average Household Income $125,144
Per Capita Income $42,808


Total Housing Units 23,340 (100%)
Owner Occupied HU 17,528 (75.1%)
Renter Occupied HU 4,865 (20.8%)
Vacant Housing Units 947 ( 4.1%)
Median Home Value $416,355
Average Home Value $472,332


Total Households 22,393
Average Household Size 2.93
Family Households 17,745
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2018 2018-2023
Population 3.9% 3.73%
Households 3.65% 3.62%
Families 3.89% 3.71%
Median Household Income   1.11%
Per Capita Income   1.76%

Castle Rock, CO - Peer Comparisons by Rank and Percentile

The table below compares Castle Rock to the other 458 incorporated cities, towns and CDPs in Colorado by rank and percentile using July 1, 2018 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 17 97th
Population Density # 80 83rd
Diversity Index # 219 52nd
Median Household Income # 59 87th
Per Capita Income # 89 81st

Additional comparisons and rankings can be made with a VERY EASY TO USE Colorado Census Data Comparison Tool.

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