Castle Rock, CO vs Centennial, CO

Castle Rock, CO and Centennial, CO have a very similar cost of living, with only a 2.6% difference in their overall index. Castle Rock scores 147 while Centennial scores 151 on the cost of living index, where 100 represents the national average. The day-to-day expenses for residents in both cities are comparable, though differences emerge when looking at specific categories.

On the housing front, median rent in Castle Rock is $1,946/month compared to $2,061/month in Centennial — a 6% difference. Home values follow the same pattern: Castle Rock is more affordable at $621,700 median vs $626,700.

Median household income in Castle Rock is $143,031 compared to $128,167 in Centennial (+11.6%). Castle Rock offers a double advantage: higher earnings combined with a lower cost of living, giving residents significantly more purchasing power. Looking at affordability, residents of Castle Rock spend roughly 16.3% of their income on rent, less than the 19.3% in Centennial.