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    ZIP Code 5: 57421 - AMHERST, SD

    ZIP Code 57421 is the postal code in AMHERST, SD. Besides the basic information, it also lists the full ZIP code and the address of ZIP code 57421. Whatsmore, there is more information related to ZIP Code 57421. For example, nearby ZIP code around ZIP Code 57421, etc.

    ZIP 57421 Basic Information

    The basic information of ZIP Code 57421 is as follows, including: country, county, city, FIPS and etc.

    StateCountyCityZIP Code 5
    SD - South DakotaBrown CountyAMHERST57421
    SD - South DakotaMarshall CountyAMHERST57421

    📌It means zip code 57421 is across counties/cities.

    What is the plus 4 zip code for 57421 ZIP Code? Below is the detail.

    57421 ZIP+4 Code List

    What are the 4 digit zip extensions of ZIP Code 57421? ZIP code 57421 has many plus 4 codes, and each plus 4 code corresponds to one or more addresses. Below we list all the ZIP+4 codes and their addresses in the ZIP Code 57421. You can find a 9-digit ZIP Code by a full address.

    ZIP Code 5 Plus 4 Address
    57421-0151 PO BOX 151 (From 151 To 236), AMHERST, SD
    57421-2000 62500 (From 62500 To 62598 Even) UNIANNE ST, AMHERST, SD
    57421-2100 300 (From 300 To 398 Even) CENTER ST, AMHERST, SD
    57421-2101 301 (From 301 To 399 Odd) CENTER ST, AMHERST, SD
    57421-2102 201 (From 201 To 299 Odd) CENTER ST, AMHERST, SD
    57421-2103 200 (From 200 To 298 Even) CENTER ST, AMHERST, SD
    57421-2104 401 (From 401 To 499 Odd) CENTER ST, AMHERST, SD
    57421-2105 400 (From 400 To 498 Even) CENTER ST, AMHERST, SD
    57421-2106 501 (From 501 To 599 Odd) CENTER ST, AMHERST, SD
    57421-2107 500 (From 500 To 598 Even) CENTER ST, AMHERST, SD

    If you can't find the 57421 plus 4 zip code you need on this page, we recommend you to use the the feature of Quick Select.

    Post Office in ZIP Code 57421

    AMHERST is the only post office in ZIP Code 57421. You can find the address, phone number, and interactive map below. Click to view the service and service hours about AMHERST.

    • AMHERST Post Office

      Address 519 FRONT ST, AMHERST, SD, 57421-9998

      Phone 605-294-5316

      *No Parking Available

    How to write a U.S. envelope?

    • First, you need to fill in the recipient's mailing information in the center of the envelope. The first line is the recipient's name, the second line is the street address with a detailed house number, and the last line is the city, state abbr, and ZIP Code.

      Second, write the sender's information on the left top corner of the envelope. If your mail cannot be delivered, it will return to the sender's address.

      Finally, don't forget to stick the stamp on the right top corner. Otherwise, the letter will not go into the delivery process.

      Here is the envelope example below.

    What does each digit of ZIP Code 57421 stand for?

    • The first digit designates a national area, which ranges from zero for the Northeast to nine for the far West.

      The 2-3 digits represent a sectional center facility in that region.

      The last two digits designate small post offices or postal zones.

    Random Address in ZIP 57421

    ZIP Code 57421 has 45 real random addresses, you can clicking the picture below to get random addresses in ZIP Code 57421.

    ZIP 57421 Online Map

    This is online map of the address AMHERST, Brown County, South Dakota. You may use button to move and zoom in / out. The map information is for reference only.

    ZIP 57421 NearBy ZIP Code

    The Nearby ZIP Codes are 57432, 57430, 57454, 57449, and 57446, you can find ZIP codes in a 25km radius around ZIP Code 57421 and the approximate distance between the two ZIP codes.
    The data has a slight deviation for your reference only.

    ZIP CodeDistance (Kilo Meters)
    574329.44
    5743017.369
    5745420.487
    5744921.626
    5744623.693
    ZIP Code 5: 57421 - AMHERST
  • State List

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