Amherst ZIP Code Finder by Area and Number South Dakota

The Amherst zip code is 57421 in South Dakota helps people find the correct mailing location for homes, businesses, and services in Amherst.

Welcome to our complete guide for Amherst, South Dakota ZIP Codes. Whether you're moving to Amherst, sending mail, searching for an address, or looking for local postal information, this page provides everything you need to know about the ZIP Codes serving Amherst, South Dakota.

Every Amherst ZIP Code is assigned by the United States Postal Service (USPS) to support efficient mail delivery and address identification. In addition to postal services, Amherst ZIP Codes are widely used for online shopping, navigation, banking, insurance, healthcare, business operations, and government services.

City	Amherst
Zip Code	57421
State	South Dakota
County	Marshall
Population	75
Latitude	45.75045
Longitude	-97.90618
Time Zone	America/Chicago

The Amherst South Dakota zip code is used by USPS for mail delivery, shipping, and address identification across Amherst and nearby South Dakota cities.

Amherst South Dakota is a growing city in South Dakota, and many people search for the Amherst zip code, Amherst postal code, Amherst SD zip code, and Amherst South Dakota mailing code when sending mail or locating addresses. The zip code in Amherst is important for deliveries, online orders, location searches, and business listings in Amherst.

If you are searching for the Amherst zip code list, Amherst SD postal code, Amherst South Dakota city zip code, or Amherst mailing zip code, this page helps you quickly find the correct Amherst zip code. Many residents, travelers, and businesses use the Amherst zip code lookup to confirm the correct Amherst mailing address.

The Amherst zip code area covers neighborhoods, residential communities, and business locations in Amherst SD. Whether you are looking for the Amherst city zip code, Amherst South Dakota postal code, Amherst SD mailing code, or Amherst location zip code, the Amherst zip code South Dakota helps identify the correct postal region in South Dakota.

People also search for zip codes near Amherst, Amherst postal codes, Amherst SD zip code lookup, Amherst address zip code, and Amherst South Dakota USPS zip code to find nearby locations in South Dakota.

ZIP Codes in Amherst

The following ZIP Codes serve Amherst, South Dakota.

ZIP Code	County	Population	Time Zone
57421	Marshall	75	America/Chicago

Whether you're searching for a residential, commercial, or mailing address, the ZIP Code list above makes it easy to find the correct postal code for Amherst.

About Amherst, South Dakota

Amherst is located in Marshall County, South Dakota, and is served by one or more ZIP Codes assigned by USPS. Residents, businesses, and visitors rely on these ZIP Codes for mail delivery, package shipping, address verification, and location-based services.

Some cities have a single ZIP Code, while larger cities may have multiple ZIP Codes covering different neighborhoods or business districts.

If you're searching for a Amherst ZIP Code, this page provides the latest available information to help you find the correct postal code quickly.

Amherst ZIP Code Map

The Amherst ZIP Code map helps visitors understand the geographic coverage of ZIP Code areas throughout the city.

The map can help you:

Locate neighborhoods
Find nearby ZIP Codes
Explore surrounding communities
Plan travel routes
Understand delivery areas

Find a ZIP Code in Amherst

If you need to locate a ZIP Code within Amherst, you can search using:

Street address
Neighborhood
Business name
Landmark
USPS mailing address

Using the correct Amherst ZIP Code helps improve mail delivery, shipping accuracy, and address verification.

About Living in Amherst

Amherst, South Dakota is part of Marshall County and is home to approximately 75 residents. The city operates in the America/Chicago time zone and is identified by the geographic coordinates 45.75045 latitude and -97.90618 longitude.

Residents enjoy access to local schools, businesses, public services, healthcare facilities, parks, and transportation networks. Whether you're relocating, visiting, or starting a business, knowing the correct ZIP Code helps simplify everyday tasks.

Common Uses of Amherst ZIP Codes

ZIP Codes in Amherst are commonly used for:

USPS mail delivery
Package shipping
Online shopping
Address verification
Banking
Insurance
Government services
Emergency services
Navigation
Real estate
Business operations
Delivery planning

Why Amherst ZIP Codes Matter

Using the correct Amherst ZIP Code offers several benefits.

For Residents

Faster mail delivery
Accurate online orders
Easier address verification
Better navigation

For Businesses

Shipping optimization
Customer management
Delivery planning
Local marketing

Frequently Asked Questions

Amherst is served by one or more ZIP Codes listed on this page.

Amherst is currently served by 1 ZIP Code. The number of ZIP Codes depends on the size of the city and USPS delivery routes.

Amherst is located in Marshall County.

Amherst is located in South Dakota.

The estimated population of Amherst is 75.

Amherst follows the America/Chicago time zone.

Use your street address or browse the ZIP Code list available on this page.

No. Some ZIP Codes may include residential, commercial, government, or PO Box delivery areas.

Using the correct ZIP Code helps improve mail delivery, shipping accuracy, navigation, and address verification.

Official ZIP Code information is maintained by the United States Postal Service (USPS).

Conclusion

Whether you're looking for a mailing address, planning a move, or researching local information, this Amherst, South Dakota ZIP Code guide makes it easy to find the postal information you need. Explore the ZIP Code list, use the map, and browse additional location details to learn more about Amherst and its surrounding communities.