57421 Zip Code Amherst Marshall
Today
Aug 05, 2026,
ZIP Code 57421 is located in Amherst, South Dakota, in County Marshall. It serves as an essential reference for accurate mail delivery, this ZIP Code assists identify the accurate postal area for residential and business addresses.
57421 Zip Code – Marshall, Amherst, SD
The 57421 zip code serves Marshall. It is a neighborhood in Amherst, South Dakota. This code is important for accurate mail delivery. It can also help you find local amenities such as schools, parks and community events. By using zip codes like 57421 you can explore different neighborhoods, it also shows what makes each area unique.
Demographics of Zip Code 57421
Located in Amherst, South Dakota, zip code 57421 has a specific population and density that reflect the local community.
Finding the Right Zip Code for Amherst, Marshall County
If you need to send mail to Amherst Marshall county, you can easily find the zip code online or by visiting your local post office.
FAQs
How many digits is the Marshall zip code?
The Marshall zip code in Amherst is a five-digit number used to identify this specific area.
Does the Marshall zip code ever change?
Zip codes may change due to postal service updates or administrative reasons. If you are looking for the Marshall zip code always check for the most current information from official postal sources or local post offices.
Which county is zip code 57421 in?
Zip code 57421 covers areas within Marshall county, South Dakota.