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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Gray Summit, MO

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Area Code(s):636
Timezone(s):Central (GMT -06:00)
City Population:2,701 (More Details)
CBSA:St. Louis, MO-IL
Congressional District(s):02
Land Area:923 square miles (county)
Water Area:8 square miles (county)

1 ZIP Code

Gray Summit, MO ZIP Code Boundaries

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Gray Summit, MO Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases

Gray Summit, MO Demographic Information *

Total population**2,701
Male population1,375
Female population1,326
Median age (years)38.7
White Population2,567
Black Population30
Indian Population7
Asian Population22
Hawaiian Population0
Hispanic Population56
Median age (Male)37.8
Median age (Female)39.5
Total households1,040
Family households (families)736
Average household size2.6
Average family size3.03
Total housing units1,127
* Demographic data is based on 2010 Census for the City of GRAY SUMMIT.
** 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],