Cost of Living in Castle Rock
Outdoor adventurers wanting space and trails
Housing Market
- Median Home Price
- $623K–$660K
- Price per Sq Ft
- ~$250/sqft
- Data Year
- 2026
Tax Rates
- Property Tax Rate
- ~0.55% effective (Douglas County; mill levy ~66.6 before special districts)
- Sales Tax Rate
- 8.1% (state 2.9% + county 1% + town 4.2%)
- Vehicle Registration
- Standard Colorado
- State Income Tax Impact
- 4.4% flat
- Cost of Living vs National
- ~44% above national average
Monthly Costs
- Water Provider
- Castle Rock Water (Town-managed)
- Electric & Gas
- Xcel Energy or CORE Electric Cooperative (varies by area); Black Hills Energy (gas)
- Internet Providers
- Comcast/Xfinity, CenturyLink/Quantum Fiber, Spectrum
- Trash & Recycling
- Waste Connections (Town contract)
- Snow Removal
- Town of Castle Rock public roads
Income & Cost Context
- Cost of Living Index
- 143.6 (national avg = 100)
- Avg Childcare Cost
- $1,300–$1,500
FAQ — Castle Rock
What is the median home price in Castle Rock?
As of early 2026, the median home price in Castle Rock is approximately $623K–$660K (Redfin reports $625K median sale price; Zillow’s typical home value is $662K). The median price per square foot is roughly $251. Prices have declined 2–5% year-over-year, and homes are averaging about 97 days on market.
What is the cost of living in Castle Rock?
Castle Rock’s cost of living index is approximately 143.6 (national average = 100), meaning it’s about 44% above the national average. Property tax is roughly 0.55% effective rate (Douglas County). Sales tax is 8.1% combined (state + county + town). Colorado has a flat 4.4% state income tax. Water is managed by Castle Rock Water; the town actively conserves due to limited local water supply, averaging 114 gallons per capita daily.