Sierra Adobe Post Office

1902 W Union Hills Dr, Phoenix, AZ 85027

Contact Numbers

Phone: 623-434-3580
Fax: 623-516-1492
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 5:00am - 7:00pm
Tuesday 5:00am - 7:00pm
Wednesday 5:00am - 7:00pm
Thursday 5:00am - 7:00pm
Friday 5:00am - 7:00pm
Saturday 5:00am - 7:00pm
Sunday 6:00am - 1:00pm

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.

  • Burial Flags
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • Money Orders (Domestic)
  • Money Orders (International)
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Lot Parking

Visit our Links Page for 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:

Shaw Butte
12208 N 19th Ave
2.3 miles away

Boulder Hills
2550 E Rose Garden Ln
3.1 miles away

19801 N 59th Ave
3.4 miles away

2901 E Greenway Rd
3.5 miles away


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I've tried to call to no avail, no one ever answers. An additional person has moved to my address and my daily informed delivery shows mail will be delivered to them, but we are not receiving the mail. Please contact me as soon as possible! Thank you.


You know I've been calling for days and no one will answer the phone. They have no working local phone. No one answers when you dial their local phone number 623-434-3580, they have no listed Messenger way to contact them, and no listed email. Sierra Adobe is unreachable. I think something bad happened and maybe all of the employees over there were killed or something. That sounds extreme but what is going on? Why is the post office unreachable??


I sent a package 2-10-21 from ft.wayne,Indiana was received in Phoenix 2-15-21 yet to be delivered to business trk# 70201290000165925584 certified mail please contact me


Not happy keep getting other people's mail and today I get my tax forms and someone has partially opened my mail and has dirty little fingerprints all over my ssn# and income tax info lady in office went to a state of denial about it and blamed machine was no tares anywhere but a price off the designated tare mark, inside a black smudged fireprint next to my SSN#


Its such a bad neighborhood that they lock the parcel drop next to the self service kiosk. Whats the point of having it always available if u have to take your package back home with you anyway? Horrible hours all around


My pink slip said I could pickup at 9am on a Saturday. This website says I can pickup at 9. However, the employees here did not receive the memo. I was told to come back at 10 by 2 employees. Get it straight!!


Difficultly with Union Hills Postal Employees, Sending Registered Letters To D.C.. 5/2014.

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