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  2. What is the zip code of Sumner, MI, 48889

Sumner (MI) Zip Code is 48889 Latest Details May, 2025

Updated: 06-05-2025

Sumner (MI) zip Code is 48889, Postal Code details. Sumner is located in state MI, United States.

Find Zip Code 48889 Details

ZIP code 48889 is located in Sumner MI in the United States.

Postal Code United States Zip Code 48889 Latest update Sumner, MI
Zip Code / Postal Code 48889

City

Sumner

State Code

MI

County

Montcalm, United States

Postal Locations

Sumner, MI - Zip Code is - 48889

Postal

United States Postal Service USPS Link

Delivery Type

Package Delivery and first class mail.

The zip code 48889 is an essential part of the postal system in Sumner, MI. Located in a vibrant part of the city, this zip code covers a variety of neighborhoods, offering residents and businesses a unique blend of suburban comfort and urban convenience. Whether you're looking to send mail, relocate, or simply learn more about the area, Sumner has a lot to offer.

FAQ about Zip Code 48889, Sumner, (MI)

What is Zip code Sumner?

Sumner Zip Code: 48889, used by the Sumner Post Office and USPS, is a Zone Improvement Plan code that ensures faster, accurate mail delivery in Montcalm, MI. Represented by the American Postal Workers Union (APWU), USPS oversees postal operations.

What is Postal code of area Sumner?

Sumner Postal Code is: 48889

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