Sierra Adobe Post Office

NOTICE: The Postal Service is an essential government service, and will remain open wherever possible.

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 5:00am - 7:00pm

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 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.

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