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ZIP code 57421

Amherst, SD · Marshall County

About ZIP code 57421

  • ZIP code 57421 is in Amherst, Marshall County, South Dakota.
  • About 75 people live in it, which is 0.9 people per square mile.
  • Time zone: Central Standard Time.
  • The middle of the ZIP code is at 45.750, -97.906.

A ZIP code is a mail delivery area, not a town border, and one ZIP code can cover parts of several towns. To check a single address, use the US Postal Service lookup.

Britton, SD

The closest town we cover is Britton, SD, about 8 miles from the middle of this ZIP code. 988 people live in Britton. Typical household income is $62,898. A typical home costs $110,200.

  • Stronger than most towns on: Short commute, Clean air and low disaster risk and Long, healthy lives.
  • Weaker than most towns on: Airport access, A place that is growing and Home internet and working from home.

See all figures for Britton

Other ZIP codes in Britton

Nearby ZIP codes

ZIP code list from SimpleMaps US Zips. Population is a US Census Bureau estimate. These are estimates, so check official sources before you decide.