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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Castell, TX

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Counties:LLANO, TX
Area Code(s):325
Timezone(s):Central (GMT -06:00)
City Population:63 (More Details)
Congressional District(s):11
Land Area:934 square miles (county)
Water Area:32 square miles (county)

1 ZIP Code

Castell, TX ZIP Code Boundaries

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Castell, TX Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases

Castell, TX Demographic Information *

There is no Census data for the city of CASTELL, TX. We have pulled information for the ZIP Code 76831 instead.
Total population**63
Male population30
Female population33
Median age (years)51.8
White Population60
Black Population0
Indian Population3
Asian Population0
Hawaiian Population0
Hispanic Population6
Median age (Male)50.5
Median age (Female)51.8
Total households29
Family households (families)23
Average household size2.17
Average family size2.39
Total housing units69
* Demographic data is based on 2010 Census for the City of CASTELL.
** 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],