Post Office in St. Clair County, MI

Algonac Post Office
Algonac Post Office

801 Saint Clair River Drive, St. Clair County, MI 48001

810-794-3821

Emmett Post Office
Emmett Post Office

3120 Main Street, St. Clair County, MI 48022

810-384-1720

Smiths Creek Post Office
Smiths Creek Post Office

425 Henry Street, St. Clair County, MI 48074

810-367-3840

Harsens Island Post Office
Harsens Island Post Office

235 La Croix Road, St. Clair County, MI 48028

810-748-9979

Q&A

1. What services do post offices in the U.S. provide?

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U.S. post offices offer a variety of services including mailing and shipping, passport applications, P.O. Box rentals, money orders, and more.

2. How can I track my mail or package?

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You can track your mail or package using the tracking number provided at the time of shipment. Enter this number on the USPS website or app to see current delivery status.

3. What are the typical operating hours for a U.S. post office?

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Most post offices open from 9 AM to 5 PM on weekdays, with limited hours on Saturdays. However, hours can vary by location, so it’s best to check the specific branch.

4. How do I change my address with the USPS?

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You can change your address online through the USPS website or by filling out a change of address form at your local post office.

5. What should I do if my mail is lost or delayed?

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First, check the tracking status. If there are issues, you can file a claim or request assistance online or at your local post office.

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