Town Chart.

← Look up another ZIP code · All towns in South Dakota

ZIP code 57231

De Smet, SD · Kingsbury County

About ZIP code 57231

  • ZIP code 57231 is in De Smet, Kingsbury County, South Dakota.
  • About 1,724 people live in it, which is 2.7 people per square mile.
  • Time zone: Central Standard Time.
  • The middle of the ZIP code is at 44.375, -97.582.

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.

De Smet, SD

ZIP code 57231 is the post office name for De Smet, SD. 943 people live in De Smet. Typical household income is $67,321. A typical home costs $165,200.

  • Stronger than most towns on: Short commute, Clean air and low disaster risk and Cost of living.
  • Weaker than most towns on: Airport access, Diversity & community and A place that is growing.

See all figures for De Smet

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.