Town Hall Address 100 N Wilcox St. Castle Rock, CO 80104 United States- Douglas County Website https://www.crgov.com Zoning 720-733-3557 100 N Wilcox St. Castle Rock, CO 80104 United States Fire District 303-660-1066 300 Perry St. Castle Rock, CO 80104 United States Town Clerk 303-660-1394 100 N Wilcox St. Castle Rock, CO 80104 United States Water 720-733-6000 175 Kellogg Court, Bldg. 171 Castle Rock, CO 80109 United States Tax Collector 720-733-2227 100 N Wilcox St. Castle Rock, CO 80104 United States County Douglas