Castle Rock Annex New Post Office

300 E Miller Ct, Castle Rock, CO 80104

Contact Numbers

Phone: 303-814-6932
Fax: 303-688-3731
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Carrier Facility: This location is for mail processing only. For retail services, please use one of the nearby locations below.

  • General Delivery

Visit our Links Page for Holiday Schedule, Change of Address, Hold Mail/Stop Delivery, PO Box rentals and fees, and Available Jobs.

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Nearby Post Offices:

Castle Rock
220 S Wilcox St
0.0 mile away

7519 E State Highway 86
4.6 miles away

4195 Douglas Ave
5.0 miles away

96 Perry Park Ave
5.5 miles away


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