100 Mather Business Center.
Grand Canyon, AZ 86023-5000
Street parking available. 
Open Monday through Friday, 8:30 am - 3:30 pm.
Closed Saturdays, Sundays, and federal holidays

Post Office Box/Lobby Access Hours: 5 am - 10 pm daily.
Last Collection Hours: Monday through Friday: 2:30 pm
Last Collection Hours: Saturday:11 am - Sunday: Closed.
 

1-800-ASK-USPS^® (800-275-8777) 
Phone 928-638-2512 
Fax 928-638-3160 
TTY 877-889-2457

Services at this Location:
Call Referral

Duck Stamps

General Delivery

Greeting Card Services

Global Express Guranteed^®

Label Broker^®

Money Orders (Domestic)

Money Orders (Inquiry)

Money Orders (International)

Pickup Accountable Mail

Pickup Hold Mail

Priority Mail International^®

PO Box Online