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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of De Smet, SD

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Area Code(s):605
Timezone(s):Central (GMT -06:00)
City Population:1,089 (More Details)
Congressional District(s):No Districts
Land Area:832 square miles (county)
Water Area:32 square miles (county)

1 ZIP Code

De Smet, SD ZIP Code Boundaries

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De Smet, SD Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases

De Smet, SD Demographic Information *

Total population**1,089
Male population514
Female population575
Median age (years)49.6
White Population1,076
Black Population1
Indian Population6
Asian Population1
Hawaiian Population0
Hispanic Population5
Median age (Male)47.2
Median age (Female)51.5
Total households478
Family households (families)290
Average household size2.17
Average family size2.83
Total housing units552
* Demographic data is based on 2010 Census for the City of DE SMET.
** City and ZIP Code Population will not be equal due to differences in their geographies.


  1. U.S. Postal Service [Last Updated: 2/1/2023],
  2. Internal Data Creation [Last Updated: 2/1/2023],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],