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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Geronimo, TX

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Area Code(s):830
Timezone(s):Central (GMT -06:00)
City Population:1,032 (More Details)
CBSA:San Antonio-New Braunfels, TX
Congressional District(s):15
Land Area:711 square miles (county)
Water Area:4 square miles (county)

1 ZIP Code

Geronimo, TX ZIP Code Boundaries

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Geronimo, TX Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases
78115P.O. Box00.00%

Geronimo, TX Demographic Information *

Total population**1,032
Male population510
Female population522
Median age (years)32
White Population808
Black Population47
Indian Population4
Asian Population7
Hawaiian Population0
Hispanic Population523
Median age (Male)30.7
Median age (Female)34.2
Total households312
Family households (families)259
Average household size3.31
Average family size3.61
Total housing units341
* Demographic data is based on 2010 Census for the City of GERONIMO.
** 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],