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

Lobby Hours
PO Box Access Available

Monday 24 hours
Tuesday 24 hours
Wednesday 24 hours
Thursday 24 hours
Friday 24 hours
Saturday 24 hours
Sunday 24 hours

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 5:00pm
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
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Packaged Stamps
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Sure Money
  • Street Parking

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

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