City · Colorado
Castle Pines, Colorado
Castle Pines, city, in Douglas County, Colorado. Castle Pines had 15,583 residents on July 1, 2025 by the Census Bureau's estimate, up 41.3% since 2020; the 2020 Census counted 11,036 and the ACS 2020-2024 5-year estimates put it at 13,388 (±41). GEOID 0812387.
Residents, July 2025 estimate
15,583
Census Bureau estimate (no margin published)
2020 Census count: 11,036 · ACS 2020-2024: 13,388 ±41
Median household income
$191,229
±$15,186 (90% margin)
Colorado: $95,470
Median home value
$895,500
±$24,143 (90% margin)
Colorado: $539,400
Median gross rent
$2,211
±$196 (90% margin)
Colorado: $1,761
Where is Castle Pines and what county is it in?
Castle Pines is a city in Douglas County, Colorado. It covers 9.6 square miles of land, 1,150 residents per square mile in 2020.
Castle Pines is in the Denver-Aurora-Centennial, CO metropolitan statistical area, which takes in 10 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Castle Pines, and is it growing?
The Census Bureau estimates that 15,583 people lived in Castle Pines on July 1, 2025, up 41.3% since 2020, faster than Colorado (+4.1%). The 2020 Census counted 11,036 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 13,388 (±41).
| Measure | Castle Pines | Douglas County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 13,388 ±41 | 377,150 | +2,797 |
| Households | 5,030 ±196 | 139,960 | +1,593 |
| Average household size | 2.66 ±0.11 | 2.69 | −0.42 |
| Housing units | 5,119 ±213 | 144,432 | +1,472 |
Castle Pines's population since 2000
From 5,958 in 2000 to 15,583 in 2025: up 161.5%. The 2000, 2010 and 2020 figures are census counts, each for Castle Pines as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Castle Pines?
The median resident of Castle Pines is 43.6 years old; 22.9% are under 18 and 15.0% are 65 or older. The largest group is non-Hispanic white residents at 78.6%, then Hispanic or Latino residents (of any race) at 9.2%. 10.1% of residents were born outside the United States.
| Measure | Castle Pines | Douglas County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 43.6 ±3.8 | 39.6 | no clear change |
| Under 18 years | 22.9% ±2.5 pts | 23.4% | – |
| 65 years and over | 15.0% ±2.3 pts | 13.9% | – |
| Male | 50.7% ±2.3 pts | 50.3% | – |
| Hispanic or Latino (any race) | 9.2% ±3.1 pts | 10.2% | no clear change |
| White alone, not Hispanic | 78.6% ±4.2 pts | 77.0% | −7.5 pts |
| Black or African American alone, not Hispanic | 4.4% ±2.8 pts | 1.3% | – |
| Asian alone, not Hispanic | 3.5% ±1.6 pts | 5.8% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.1% ±0.1 pts | 0.2% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.2% ±0.5 pts | 0.1% | – |
| Two or more races, not Hispanic | 3.8% ±1.3 pts | 4.9% | – |
| Some other race alone, not Hispanic | 0.2% ±0.3 pts | 0.5% | – |
| Born outside the United States | 10.1% ±3.8 pts | 8.4% | no clear change |
| Speak a language other than English at home (age 5+) | 10.9% ±4.1 pts | 10.4% | – |
| Civilian veterans (age 18+) | 7.1% ±2.3 pts | 7.2% | – |
| With a disability | 5.7% ±1.9 pts | 8.1% | – |
| No health insurance coverage | 3.4% ±1.8 pts | 3.9% | – |
| High school graduate or higher (age 25+) | 99.3% ±0.6 pts | 97.9% | – |
| Bachelor's degree or higher (age 25+) | 69.7% ±4.0 pts | 62.0% | no clear change |
| Graduate or professional degree (age 25+) | 24.9% ±4.3 pts | 22.5% | – |
| Lived in the same house a year earlier | 83.2% ±4.2 pts | 85.1% | – |
| Moved from another state in the past year | 3.8% ±1.8 pts | 4.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Castle Pines earn?
Half of Castle Pines's 5,030 households earn less than $191,229 a year (±$15,186), against $149,594 in Douglas County and $95,470 in Colorado. In 2015-2019 it was $201,611 in 2024 dollars; the margins of error cannot tell the two periods apart. 6.9% of residents live below the poverty line.
| Measure | Castle Pines | Douglas County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $191,229 ±$15,186 | $149,594 | no clear change |
| Mean household income | $208,377 ±$15,929 | $183,544 | – |
| Per capita income | $79,845 ±$5,705 | $69,608 | no clear change |
| People below the poverty line | 6.9% ±2.8 pts | 3.8% | +5.2 pts |
| Children under 18 below the poverty line | 6.4% ±4.3 pts | 3.0% | – |
| Households receiving SNAP | 0.6% ±1.0 pts | 2.1% | – |
| Households with a computer | 99.4% ±0.7 pts | 98.9% | – |
| Households with a broadband subscription | 98.4% ±1.0 pts | 97.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Castle Pines?
Owners occupy 80.7% of Castle Pines's occupied homes and renters 19.3%. The median owner-occupied home is valued at $895,500 by its owner (±$24,143). The median renter pays $2,211 a month including utilities, and 62.2% of renters pay 35% or more of their income on rent.
| Measure | Castle Pines | Douglas County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $895,500 ±$24,143 | $713,600 | +$138,131 |
| Median gross rent | $2,211 ±$196 | $2,193 | no clear change |
| Renters paying 35% or more of income on rent | 62.2% ±17.0 pts | 41.2% | no clear change |
| Median monthly owner costs, with a mortgage | $3,772 ±$191 | $2,893 | – |
| Owner-occupied homes | 80.7% ±5.0 pts | 77.4% | −8.8 pts |
| Renter-occupied homes | 19.3% ±5.0 pts | 22.6% | – |
| Housing units | 5,119 ±213 | 144,432 | +1,472 |
| Homeowner vacancy rate | 0.0% ±1.0 pts | 0.5% | – |
| Rental vacancy rate | 1.8% ±3.1 pts | 4.4% | – |
| Single-family detached homes | 77.2% ±4.9 pts | 73.4% | – |
| Mobile homes | 0.0% ±0.8 pts | 0.3% | – |
| Built 2020 or later | 22.4% ±4.6 pts | 6.0% | – |
| Built 2010 to 2019 | 5.0% ±2.4 pts | 21.0% | – |
| Built 1939 or earlier | 0.0% ±0.8 pts | 0.5% | – |
| Households with no vehicle | 1.5% ±0.9 pts | 2.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Castle Pines building?
Builders took permits for 117 new housing units in Castle Pines in 2025 (99 in single-family houses), 7.5 per 1,000 residents against 5.6 across Colorado.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Castle Pines work and get to work?
55.4% of Castle Pines's workers drive alone and 37.1% work from home. The average trip to work takes 26.9 minutes. The unemployment rate in 2020-2024 averaged 2.6%.
| Measure | Castle Pines | Douglas County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 73.6% ±3.0 pts | 71.9% | – |
| Unemployment rate | 2.6% ±1.3 pts | 3.6% | no clear change |
| Drove alone to work | 55.4% ±5.8 pts | 61.9% | – |
| Carpooled | 4.4% ±1.9 pts | 4.9% | – |
| Public transportation | 0.1% ±0.2 pts | 0.6% | – |
| Walked | 2.2% ±1.6 pts | 1.2% | – |
| Worked from home | 37.1% ±5.8 pts | 30.5% | +14.5 pts |
| Mean travel time to work | 26.9 min ±2.7 | 27.1 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Castle Pines?
2 census tracts lie mostly in Castle Pines, and 5 more reach into it (2020 census blocks). Their median household incomes run from $184,924 (Tract 141.41) to $198,750 (Tract 141.27).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 141.41Douglas County | 7,070 | $184,924 |
| Tract 141.27Douglas County | 5,057 | $198,750 |
| Tract 141.25Douglas County | 5,692 | $139,222 |
| Tract 141.42Douglas County | 1,902 | $250,000 or more |
| Tract 140.11Douglas County | 7,763 | $165,339 |
| Tract 140.17Douglas County | 2,959 | $161,250 |
| Tract 140.16Douglas County | 8,128 | $187,750 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Castle Pines) · Census block assignment files
How does Castle Pines compare with other places in Colorado?
By the Census Bureau's July 2025 estimates, Castle Pines is the 2,353rd-most populous of the 19,476 U.S. incorporated places that have one and the 38th-most populous of 272 in Colorado.
Castle Pines ranks 9th of 218 places in Colorado with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 38th | 272 |
| Growth 2020-2025 (PEP) | 8th | 150 |
| Residents per square mile | 126th | 221 |
| Median household income | 9th | 218 |
| Per capita income | 24th | 220 |
| Median home value | 23rd | 217 |
| Median gross rent | 21st | 200 |
| Poverty rate | 110th | 151 |
| Bachelor's degree or higher | 22nd | 216 |
| Median age | 55th | 220 |
| Owner-occupied share | 67th | 218 |
| Work from home | 15th | 176 |
| Travel time to work | 78th | 221 |
Castle Pines's figures with every place in Colorado (CSV)
Every place in Colorado, sortable · Compare Castle Pines with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Castle Pines?
11 of the 57 figures for Castle Pines on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Castle Pines are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Castle Pines.