Caro Post Office

210 W Lincoln St, Caro, MI 48723

Contact Numbers

Phone: 989-673-3104
Fax: 989-673-3972
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 6:30am - 5:30pm
Tuesday 6:30am - 5:30pm
Wednesday 6:30am - 5:30pm
Thursday 6:30am - 5:30pm
Friday 6:30am - 5:30pm
Saturday 6:30am - 3:00pm
Sunday Closed

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 3:00pm
Sunday Closed

Passport Appointment Hours*

Monday 9:00am - 4:00pm
Tuesday 9:00am - 4:00pm
Wednesday 9:00am - 4:00pm
Thursday 9:00am - 4:00pm
Friday 9:00am - 4:00pm
Saturday 9:00am - 12:00pm
Sunday Closed

  • Visit our Passport FAQ page for a complete overview of what to bring, what you need to know, and how long it will take.
  • You will need two forms of Identification with copies.
  • A passport quality photo. Available at location.
  • The appropriate application form printed and filled out, and the required fee for applying or renewing.
  • You can find up to date costs, information, and forms at the State Departments Travel Site

*An appointment is required to apply for or renew US Passports. Please Call or schedule online.

Bulk Mail Acceptance Hours

Monday 9:00am - 12:00pm, 1:00pm - 4:00pm
Tuesday 9:00am - 12:00pm, 1:00pm - 4:00pm
Wednesday 9:00am - 12:00pm, 1:00pm - 4:00pm
Thursday 9:00am - 12:00pm, 1:00pm - 4:00pm
Friday 9:00am - 12:00pm, 1:00pm - 4:00pm
Saturday Closed
Sunday Closed

  • 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)
  • Passport Acceptance
  • Passport Photo
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Lobby has Copier
  • Lot Parking
  • Passport Appointment Hours

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:

4282 Beach St
5.7 miles away

2045 N Main St
6.0 miles away

6120 Fulton St
6.5 miles away

6599 Center St
7.2 miles away


*Comments below are not read by postal employees. Please do not post personal information.

*By clicking Submit, you agree to our Privacy Policy & Terms of Use.


They won't answer their phone. Being I'm disabled I can't get 8n building. Waiting on call back to report.


Good luck dealing with these people. Nonworking phone. Very poor communication. Lying to your face uncaring management.


Friggin answer your phones !!!!!


May question is does ANYONE work at this post office??? This is the worst post office I have every dealt with... And the mail carrier's DON'T GIVE A SHIT ABOUT delivering the mail, I could not tell you how many times my mail has been damaged, ripped open, etc... I've called and addressed the issues many times but it does NO GOOD....


I find it despicable for the government to provide for free packaging material. They should charge a fee for these materials. Here's my evidence. I received a package that the sender used all government materials to package and send said package. Here's the list.9 flat cardboard envelopes RRBA2 15 lb.--26 plastic padded envelopes EP14PE 9.5 x 12.5-- 2 small boxes Small FRB 5 3/8 x 8 5/8 x 1 5/8--1 large box O Box 7 12 x 12 x 8--and all the tape to package the shipment --approx. 40 plus feet. This is money NOT well spent. It cost $11.40 to send this box @ Priority rate. The materials alone cost more than that, let alone the manpower and other expenses to deliver it. This wastefulness of our government must stop. Who in their right mind would run a business like that? They would be bankrupt in a month! Oh, wait a minute, our government is bankrupt!! And you and I folks are paying dearly for it!

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