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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Weir, TX

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Area Code(s):512, 737
Timezone(s):Central (GMT -06:00)
City Population:450 (More Details)
CBSA:Austin-Round Rock-Georgetown, TX
Congressional District(s):31
Land Area:1,118 square miles (county)
Water Area:16 square miles (county)

1 ZIP Code

Weir, TX ZIP Code Boundaries

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Weir, TX Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases
78674P.O. Box00.00%

Weir, TX Demographic Information *

Total population**450
Male population235
Female population215
Median age (years)35.5
White Population403
Black Population2
Indian Population5
Asian Population2
Hawaiian Population0
Hispanic Population140
Median age (Male)36.4
Median age (Female)34.9
Total households158
Family households (families)120
Average household size2.85
Average family size3.28
Total housing units182
* Demographic data is based on 2010 Census for the City of WEIR.
** 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],