Grimes Post Office

400 SE Gateway Dr, Grimes, IA 50111

Contact Numbers

Phone: 515-986-3460
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

Bulk Mail Acceptance Hours

Monday 9:00am - 3:00pm
Tuesday 9:00am - 3:00pm
Wednesday 9:00am - 3:00pm
Thursday 9:00am - 3:00pm
Friday 9:00am - 3:00pm
Saturday Closed
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 Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • 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:

Ash Creek
3311 100th St
2.6 miles away

West Suburban
2135 NW 108th St
3.0 miles away

7755 Douglas Ave
3.1 miles away

5874 Merle Hay Rd
3.3 miles away


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The moron that delivers on the weekends should be fired. Shoves mailbox so full you can't get anything out that's if he can read the box number. The lady during the week is friendly and never I never have an issue.


I have a package that is currently sitting in a lock box and I have no key to retrieve it because the mail person put the key in the wrong box so some one else in our complex will get my husbands Christmas present, I am so frustrated. The tracking came to my phone around 4:00 pm yesterday so I went to get it later , and the mail person has put the key in someone else box to receive a very special present that was meant for my husband , we are on glenstone dr. in grimes Iowa , putting in a formal complaint Monday as this has happened before !!! I am afraid that the persons mail box it did get the key will not return the package and it was a very special present. I am so frustrated of this happening all the time!!!!has just ruined my Xmas!!!


I want to give a shout out to Ruben. He took care of a misdirect package within 2-3 hours of me filing a lost mail search request. This isn’t the first time. He has found lost packages for me in the past. I appreciate how quickly he takes care of my problems and always follows through to completion.


My package was delivered to my old address rather than forwarded on to my new one. The apartment complex I had lived in was unable to locate the package. Sara at the USPS Grimes location went above and beyond to track the package down. She held it until we were able to get it picked up. I really appreciate them going above and beyond to find my items.

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