57421 Zip Code

About 57421 Zip Code

ZIP Code: 57421
Latitude: 45.75045
Longitude: -97.90618
Population: 75
Density: 0.9
City: Amherst
State: South Dakota
County: Marshall County
All Counties: Marshall
Time Zone: America/Chicago

ZIP code 57421 covers the area of Amherst, South Dakota in the United States. It is primarily associated with Marshall County and lies in the America/Chicago time zone.

ZIP Code 57421 Overview

ZIP code 57421 serves the community of Amherst, South Dakota. Based on available data, this ZIP code has an estimated population of around 75 people and a population density of roughly 0.9 people per square kilometer.

The primary county linked to this ZIP code is Marshall County. In some datasets, ZIP codes can overlap multiple counties. For ZIP code 57421, the extended county coverage is recorded as: Marshall.

Location and Coordinates

The geographic center (approximate) of ZIP code 57421 is located near latitude 45.75045 and longitude -97.90618. This information is useful for mapping, distance calculations, and understanding how this ZIP fits within South Dakota.

Time Zone

ZIP code 57421 falls under the America/Chicago time zone. This can be important for scheduling, logistics, and travel planning.

Related ZIP Code Pages

Explore other related ZIP code resources on Burning Compass:

• All ZIP codes in South Dakota
• All ZIP codes for the city of Amherst
• All ZIP codes in Marshall County