Northside Post Office

3311 N Saginaw St, Flint, MI 48505

Contact Numbers

Phone: 810-787-1380
Fax: 810-787-7719
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 6:30am - 4:00pm
Tuesday 6:30am - 4:00pm
Wednesday 6:30am - 4:00pm
Thursday 6:30am - 4:00pm
Friday 6:30am - 4:00pm
Saturday 6:30am - 12:00pm
Sunday Closed

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday Closed
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
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Lobby has Copier
  • Street 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:

250 E Boulevard Dr
1.0 mile away

Flint 2
250 E Boulevard Dr
1.0 mile away

Downtown Flint
400 S Saginaw St
1.2 miles away

Mott Park
2712 Flushing Rd
1.6 miles away


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some one from the post office is stealing my samples! none of my samples even get to my mail box!!!!!!!! 5510 GRANVILLE AVE FLINT MI 48505!!! STOP STEALING MY SAMPLES

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