Castle Rock, CO GIS Map
Castle Rock is a city in Douglas County, Colorado, with a population of about 73,158. The map below shows its location, boundary and surrounding roads, with federal GIS layers you can turn on for the area.
- County
- Douglas County
- Population
- 73,158
- Elevation
- 6,218 ft
- Coordinates
- 39.3722, -104.8561
- ZIP codes (3)
- 80104, 80108, 80109
- Land area
- 34.7 sq mi
- Time zone
- America/Denver
About Castle Rock, CO
Castle Rock is a home rule town that is the county seat of and the most-populous municipality in Douglas County, Colorado, United States. The town's population was 73,158 at the 2020 census, a 51.68% increase since the 2010 census. Castle Rock is the most-populous Colorado town and the 14th-most populous Colorado municipality. Castle Rock is a part of the Denver-Aurora-Lakewood, CO metropolitan statistical area and the Front Range urban corridor.
Source: Wikipedia (CC BY-SA 4.0)
Cities Near Castle Rock
- Parker, CO11 mi
- Centennial, CO14 mi
- Littleton, CO19 mi
- Englewood, CO20 mi
- Aurora, CO25 mi
- Lakewood, CO26 mi
- Black Forest, CO26 mi
- Denver, CO26 mi
Other Cities in Douglas County
GIS Data for Castle Rock, CO
The Castle Rock map loads live federal GIS layers in your browser, so you can check flood zones, terrain, land cover and district boundaries for any address in Castle Rock without a separate GIS login. Everything below is drawn from public U.S. government data.
Layers you can turn on
FEMA flood zones
National Flood Hazard Layer — flood insurance rate map zones.
Elevation contours and hillshade
USGS 3DEP terrain, so you can read slope and relief.
Land cover
NLCD land cover classes — forest, developed, wetland, water.
School districts
Census TIGER unified and elementary school district boundaries.
ZIP code and county boundaries
Census TIGER ZCTA and county boundary lines.
Map tools
Measure distance and area
Draw a line or polygon to get length in miles or area in acres.
Sketch and annotate
Add points, lines and shapes on top of the map.
Inspect any point
Click the map to read coordinates, elevation and the layers under your cursor.
Download the map
Save the current view as a PNG image.
Castle Rock Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
79,123
Households
28,219
Median household income
$145,197
Median age
36.5 years
Median home value
$652,900
Median gross rent
$2,000/mo
Owner-occupied homes
78.8%
Bachelor's degree or higher
55.9%
Below poverty level
3.8%
Land area
34.7 sq mi
Population density
2,277 / sq mi
County
Castle Rock Population Growth
Source: U.S. Census Bureau, 2010 Census and Population Estimates Program (Vintage 2024: April 2020 estimates base and July 1, 2024 estimate).
2010 Census
48,231
April 2020 (estimates base)
73,158
July 2024 estimate
83,213
Change 2010-2020
+51.7%
Change 2020-2024
+13.7%
Photos of Castle Rock
Hover over a photo to see it larger. Tap on mobile.
Photos from Wikimedia Commons, taken in or near Castle Rock. Credits and licenses are shown in the larger view.
Federal Buildings & Leases in Castle Rock
GSA-managed federal properties in and around Castle Rock.
| Property | Address | Status | Sq ft | Lease ends |
|---|---|---|---|---|
| 1230 Park Street | 1230 Park St, 80109 | Leased | 10,800 | Feb 2030 |
Source: U.S. GSA Inventory of Owned and Leased Properties (data.gov), September 2026.
Soils of Castle Rock
General soil map unit at the city center: Truckton-Bresser
Soil Properties
- Drainage class
- Well drained
- Hydrologic soil group
- B (moderate infiltration)
- Available water storage (0–150 cm)
- 14.9 cm
- Typical slope
- 6%
- Flooding frequency
- None
Soil Components
- Truckton26%
Mollisols · Aridic Argiustolls
- Bresser19%
Mollisols · Aridic Argiustolls
- Truckton9%
Mollisols · Aridic Argiustolls
- Bresser9%
Mollisols · Aridic Argiustolls
- Bresser9%
Mollisols · Aridic Argiustolls
- Ellicott8%
Entisols · Ustic Torrifluvents
Source: USDA NRCS U.S. General Soil Map (STATSGO2). General soil map data (1:250,000 scale) is not suitable for site-specific decisions.
Climate of Castle Rock
30-year averages (1991–2020) from the Castle Rock, Co weather station, elevation 6,185 ft, 3.8 miles from the city center.
Warmest month
Jul · avg high 86°F
Coldest month
Jan · avg low 18°F
Annual precipitation
17.6 in
Annual snowfall
57.5 in
Average Monthly Temperatures (°F)
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 46 | 47 | 54 | 59 | 68 | 80 | 86 | 84 | 77 | 65 | 54 | 46 |
| Avg low °F | 18 | 20 | 26 | 32 | 42 | 50 | 56 | 55 | 47 | 35 | 26 | 18 |
| Precip. in | 0.55 | 0.70 | 1.54 | 2.08 | 1.97 | 2.20 | 2.32 | 2.52 | 1.39 | 0.85 | 0.79 | 0.69 |
| Snow in | 8.0 | 10.7 | 10.7 | 8.3 | 1.1 | 0.0 | 0.0 | 0.0 | 0.4 | 2.7 | 6.7 | 8.9 |
Source: NOAA NCEI U.S. Climate Normals, 1991–2020. Conditions at the station may differ from other parts of the city.
Natural Hazard Risk in Castle Rock
FEMA National Risk Index ratings for Douglas County, compared with all U.S. counties.
Overall risk
Score 88.7 of 100
Expected annual loss
Buildings, population & agriculture
Social vulnerability
Susceptibility to hazard impacts
Community resilience
Ability to prepare & recover
Risk by Hazard
- LightningVery High
- HailRelatively High
- WildfireRelatively High
- Winter WeatherVery High
- TornadoRelatively High
- Strong WindRelatively High
- Inland FloodingRelatively Moderate
- LandslideRelatively Low
- Volcanic ActivityVery Low
- Cold WaveRelatively Low
- EarthquakeRelatively Low
- Heat WaveRelatively Low
- Ice StormRelatively Low
- DroughtRelatively Low
- AvalancheVery Low
Source: FEMA National Risk Index (December 2025 release). County-level ratings are relative to other U.S. counties and are not a property-specific assessment.
Castle Rock FAQ
What county is Castle Rock in?
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Castle Rock, Colorado is located in Douglas County.
What is the population of Castle Rock?
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Castle Rock has a population of about 73,158, making it the number 16 of the 54 Colorado cities listed on GIS Map.
What is the elevation of Castle Rock?
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The elevation of Castle Rock is approximately 6,218 feet (1,895 meters) above sea level at the city center.
What ZIP codes are in Castle Rock?
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ZIP codes for Castle Rock include 80104, 80108, 80109.
What time zone is Castle Rock in?
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Castle Rock is in the Mountain Time zone (America/Denver).
How far is Castle Rock from Denver?
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Castle Rock is about 26 miles from Denver, the capital of Colorado, in a straight line.
What cities are near Castle Rock?
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Cities near Castle Rock include Parker, CO (11 miles); Centennial, CO (14 miles); Littleton, CO (19 miles); Englewood, CO (20 miles); Aurora, CO (25 miles).
Local notes for Castle Rock, CO
Questions and local knowledge from people who know the area. Every note is read before it appears here.