Mesa Four Peaks Post Office

9855 E Southern Ave, Mesa, AZ 85209

Contact Numbers:

Phone: 480-357-3805
Fax: 480-357-3813
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Bulk Mail Acceptance Hours

Monday-Friday 8:00am - 4:30pm
Saturday 9:00am - 12:00pm
Sunday Closed

Pickup Services Hours

Monday-Friday 8:30am - 4:30pm
Saturday 9:00am - 12:00pm
Sunday Closed

Lobby Hours

Monday-Sunday 12:01am - 11:59pm

PO Box Access Hours

Monday-Sunday 12:01am - 11:59pm

PO Box Delivery Time

Monday-Saturday 10:30am
Sunday Closed

Last Collection Times

Monday-Saturday 5:00pm
Sunday Closed

Self-Service Kiosk Availability

Monday-Sunday 12:01am - 11:59pm

Carrier Facility Hours

Monday-Friday 8:00am - 4:30pm
Saturday-Sunday Closed

Global Express Guaranteed® Hours

Monday-Friday 8:00am - 4:30pm
Saturday-Sunday Closed

*This facility does not process US Passports applications or renewals. Check nearby locations below.

  • Bulk Mail Acceptance
  • Bulk Mail Account Balance
  • Bulk Mail New Permit
  • Burial Flags
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Global Express Guaranteed®
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Packaged Stamps
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Priority Mail International®
  • Sure Money
  • Lot Parking

Visit our Links Page for Change of Address, Hold Mail/Stop Delivery, PO Boxes™ rentals and fees, Rates on Postage Stamps and Freight/Shipping, Holidays, Bulk Mail, Money Orders, and Available Jobs.

*Please call to verify information. Is anything incorrect? Let us know here

Nearby Post Offices:

Mesa Superstition Springs
7316 E Southern Ave
2.2 miles away

Mesa Desert
6644 E Broadway Rd
2.9 miles away

Apache Junction
151 W Superstition Blvd
3.1 miles away

Mesa Falcon Field
5155 E Eagle Dr
4.9 miles away


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3 of 6 packages not delivered although the tracking shows as delivered. The post office states they may have been too big for my locked cluster box although each shipment is under 1 pound and in small packaging such as envelopes. They absolutely should be able to fit in the LOCKED box. I complained and wanted explanations of why 50% of my shipments are not making themselves to me and I want an internal investigation. NO RESPONSES - I think my carrier is stealing. Who possibly had 50% of their packages go missing??


I had an experience today 5/2/16 with an employee that should not be in a position to work with the public. The guy had an attitude that was utterly wrong and if in a position outside of government should be fired. He was confrontational and aggressive and refused to give me service. I wish I had gotten his name, he acted this way in front of a supervisor that was going to "talk" to him. This guy needs more than talk perhaps he needs a Psychologist. I really think this guy may go "postal"


Just cane back from4 peaks, 3rd time I have encountered a way beyond rude "customer service" representative, Main Po should be aware of how rude and nasty, yes nasty, these 2 females are to customers. try somewhere else.

* is not a part of, or affiliated with, the official United States Postal Service (USPS).