City profile
Castle Rock, CO
Douglas County · Population 79,123
Castle Rock is a city in Douglas County, CO with about 79,123 residents and a typical home value near $653,000. It is 25 miles from Aurora, CO, which shapes its climate, healthcare access and amenities.
Climate
Climate type
mountain_alpine
Winter avg
32°F
Summer avg
73°F
Sunny days / yr
245
Home prices & cost of living
Median home price
$652,900
Typical monthly housing
$3,813
Cost of living (100 = U.S.)
125
Taxes
- Property tax
- 0.49%
- State income tax (top)
- 4.4%
- Social Security
- Taxed (with exemptions)
- Pensions
- Partly exempt
- Sales tax (state + avg. local)
- 7.81%
FEMA natural hazard risk
Relatively Moderate · county score 89/100
Top hazards: Lightning, Hail, Wildfire
Nearest major airport
35 mi to Denver International Airport (DEN)
Political lean (2024 county vote)
Competitive / purple · 45% Democratic / 52% Republican
Community
Population
79,123
Black population
0.8%
County
Douglas County
Detailed crime figures are available for our 201 hand-researched cities.
2025–2026 trends
2026 market trends
- ▸Home insurance premiums are rising quickly here
- ▸Home prices are softening in 2026 — more room to negotiate
- ▸Climate/cost risks to check: hail, wildfire
Highlights
- About 79,123 residents
- Typical home value about $653,000
- 25 miles from Aurora, CO
Trade-offs
- Scores for this place are estimated from Census data and the nearest major city
Figures are estimates from public sources (see How we match). Verify before making decisions.