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  2. What is the zip code of Groton, SD, 57445

Groton (SD) Zip Code is 57445 Latest Details Sep, 2025

Updated: 27-09-2025

Groton (SD) zip Code is 57445, Postal Code details. Groton is located in state SD, United States.

Find Zip Code 57445 Details

ZIP code 57445 is located in Groton SD in the United States.

Postal Code United States Zip Code 57445 Latest update Groton, SD
Zip Code / Postal Code 57445

City

Groton

State Code

SD

County

Brown, United States

Postal Locations

Groton, SD - Zip Code is - 57445

Postal

United States Postal Service USPS Link

Delivery Type

Package Delivery and first class mail.

The zip code 57445 is an essential part of the postal system in Groton, SD. 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, Groton has a lot to offer.

FAQ about Zip Code 57445, Groton, (SD)

What is Zip code Groton?

Groton Zip Code: 57445, used by the Groton Post Office and USPS, is a Zone Improvement Plan code that ensures faster, accurate mail delivery in Brown, SD. Represented by the American Postal Workers Union (APWU), USPS oversees postal operations.

What is Postal code of area Groton?

Groton Postal Code is: 57445

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