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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Onalaska, TX

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Counties:POLK, TX
Area Code(s):936
Timezone(s):Central (GMT -06:00)
City Population:1,764 (More Details)
Congressional District(s):08, 36
Land Area:1,057 square miles (county)
Water Area:53 square miles (county)

1 ZIP Code

Onalaska, TX ZIP Code Boundaries

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Onalaska, TX Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases

Onalaska, TX Demographic Information *

Total population**1,764
Male population865
Female population899
Median age (years)49.2
White Population1,604
Black Population89
Indian Population18
Asian Population12
Hawaiian Population0
Hispanic Population61
Median age (Male)49.3
Median age (Female)49.1
Total households755
Family households (families)484
Average household size2.32
Average family size2.86
Total housing units1,207
* Demographic data is based on 2010 Census for the City of ONALASKA.
** 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],