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ZIP Code Database - Facts & Stats

Data Last Updated: January 1, 2022

ZIP Codes for City of Seguin, TX

Seguin, TX Covers 2 ZIP Codes

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 78155StandardGuadalupe45,341830
ZIP Code 78156P.O. BoxGuadalupe0830

Timezone(s):Central (GMT -06:00)
Population:25,175 (More Details)
Male Population:12,169
Female Population:13,006
Median Age:35
ZIP Codes:2
Area Codes:1
Total Area:715 square miles (county)
Land Area:711 square miles (county)
Water Area:4 square miles (county)

Seguin, TX Demographic Information *

Total population25,175
Male population12,169
Female population13,006
Median age (years)35.3
White Population19,114
Black Population2,026
Indian Population138
Asian Population222
Hawaiian Population10
Hispanic Population13,938
Median age (Male)32.9
Median age (Female)37.7
Total households8,794
Family households (families)5,968
Average household size2.68
Average family size3.25
Total housing units9,714
* Demographic data is based on 2010 Census.

Seguin, TX Other Information

  • Located in GUADALUPE County, Texas
  • Seguin, TX is also known as:

45 Cities within 30 miles of Seguin, TX Products


  1. U.S. Postal Service [Last Updated: 1/1/2022],
  2. Internal Data Creation [Last Updated: 1/1/2022],
  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],