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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Lockhart, TX

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Area Code(s):512, 737
Timezone(s):Central (GMT -06:00)
City Population:12,698 (More Details)
CBSA:Austin-Round Rock-Georgetown, TX
Congressional District(s):27
Land Area:545 square miles (county)
Water Area:2 square miles (county)

1 ZIP Code

Lockhart, TX ZIP Code Boundaries

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Lockhart, TX Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases
78644Standard17,081100.00%MENDOZA, SEAWILLOW

Lockhart, TX Demographic Information *

Total population**12,698
Male population6,180
Female population6,518
Median age (years)35.7
White Population9,275
Black Population1,189
Indian Population102
Asian Population56
Hawaiian Population2
Hispanic Population6,483
Median age (Male)34.1
Median age (Female)37.2
Total households4,098
Family households (families)2,927
Average household size2.78
Average family size3.3
Total housing units4,527
* Demographic data is based on 2010 Census for the City of LOCKHART.
** 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],