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ZIP Code 57421

Amherst, South Dakota, United States

Standard ZIP Central Time (CT)
75
Population
0.9
Per sq mile
Marshall
County

About ZIP Code 57421

ZIP code 57421 is assigned to Amherst, Marshall County, South Dakota, United States. It falls in the Central Time (CT) zone. The estimated population of this ZIP code area is 75 with a density of 0.9 people per square mile.

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Location Details

ZIP Code57421
CityAmherst
CountyMarshall County
StateSouth Dakota
CountryUnited States
TimezoneCentral Time (CT)
Timezone IDAmerica/Chicago
Latitude45.7505
Longitude-97.9062
ZIP TypeStandard ZIP

Post Office

Address519 FRONT ST
CityAMHERST
StateSD

Nearby ZIP Codes in South Dakota

57432
Claremont
57430
Britton
57454
Langford
57449
Houghton
57422
Andover
57446
Hecla

Frequently Asked Questions

What city is ZIP code 57421 in?

ZIP code 57421 is in Amherst, Marshall County, South Dakota, United States.

What county is ZIP code 57421 in?

ZIP code 57421 is in Marshall County, South Dakota.

What timezone is ZIP code 57421 in?

ZIP code 57421 is in the Central Time (CT) zone (America/Chicago).

What is the population of ZIP code 57421?

The estimated population of ZIP code 57421 is 75 people with a density of 0.9 people per square mile.

What state is ZIP code 57421 in?

ZIP code 57421 is in South Dakota (SD), United States.

📋 Data Source: United States Postal Service (USPS) & US Census Bureau (ZCTA data) · Public domain government data. For official ZIP code information visit tools.usps.com. Data is periodically updated but may not reflect the most recent changes.