Amherst SD ZIP Code

Amherst city is located in South Dakota State, Marshall County and has a unique zip code assigned by the US Postal Service Office.

You can search for the Amherst SD zip code by its streets and block numbers if we have some of the Amherst streets loaded in our website

Amherst Area Code is 605 and Time Zone is Central (GMT -06:00).

Amherst Zip Code - South Dakota

The US ZIP Code basic format consists of five decimal numerical digits assigned to the Amherst City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Amherst ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Amherst, South Dakota.

The Amherst Zip Code is 57421.

If you want to send a mail to Amherst City, you should use the 57421 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded Amherst ZIP code system that it called ZIP+4, often called "plus-four codes", "add-on codes", or "add ons". A ZIP+4 code uses the basic 57421 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Amherst city block, a group of apartments, an individual high-volume receiver of mail or any other unit that could use an extra identifier to aid in efficient mail sorting and delivery in South Dakota.

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What is the Amherst Zip Code?

The Amherst Zip Code in South Dakota is 57421.

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Amherst, South Dakota - US Zip Code

Amherst ZIP Code Lookup

57421 Zip Code File:
Zip Code: 57421,
City: Amherst
Amherst Area Code: 605
Amherst, SD - Time Zone: Central (GMT -06:00)
County: Marshall
City Alias: Amherst
State: South Dakota
State Abb: SD

South Dakota Zip+4 - Nearby Amherst Cities

Cities near Amherst in South Dakota
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