Castle Rock is the location of the Douglas County government offices, approximately fifteen miles south of the DTC, and one of the older cities in Douglas County. Many of the homes with a “Castle Rock” address do not feel as if they are in the “city” due to two factors: 1)  Much land has been annexed into the city far beyond its core, and 2) As with many unincorporated areas, the mailing address comes from the post office processing the mail and may be substantially removed.  The city itself is growing and changing in response to the changing demographics of the growing population, currently about 20,000, and opportunities for shopping and dining are growing.

Castle Rock has a wide range of home prices, ages and styles from condominiums under $100,000 to million dollar plus custom homes.