Post Offices List in Castle Rock City, Colorado:
| Castle Rock Post Office | 300 E Miller Ct, Castle Rock, CO 80104 |
| Castle Rock Retail Post Office | 220 S Wilcox St, Castle Rock, CO 80104 |
| Castle Rock Post Office | 300 E Miller Ct, Castle Rock, CO 80104 |
| Castle Rock Retail Post Office | 220 S Wilcox St, Castle Rock, CO 80104 |