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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Gregory, SD

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Counties:GREGORY, SD
Area Code(s):605
Timezone(s):Central (GMT -06:00)
City Population:1,295 (More Details)
Congressional District(s):03
Land Area:1,015 square miles (county)
Water Area:39 square miles (county)

1 ZIP Code

Gregory, SD ZIP Code Boundaries

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Gregory, SD Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases
57533Standard1,900100.00%CARLOCK, DIXON, IONA

Gregory, SD Demographic Information *

Total population**1,295
Male population619
Female population676
Median age (years)48.5
White Population1,169
Black Population2
Indian Population88
Asian Population8
Hawaiian Population0
Hispanic Population11
Median age (Male)43.6
Median age (Female)51.3
Total households611
Family households (families)326
Average household size2.05
Average family size2.82
Total housing units730
* Demographic data is based on 2010 Census for the City of GREGORY.
** 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],