Seguin, Texas

Seguin, Texas
Park Plaza Hotel, Seguin's tallest downtown building. Bottom: The 1916 Aumont Hotel is part of the National Register of Historic Places; the 2nd-tallest building in downtown Seguin.
Location of Seguin in Guadalupe County, Texas
Coordinates: 29°37′40″N 97°57′42″W / 29.62778°N 97.96167°W / 29.62778; -97.96167
CountryUnited States
StateTexas
CountyGuadalupe
FoundedAugust 12, 1838
Incorporated1853
Government
 • TypeCouncil-Manager
Area
 • Total
40.224 sq mi (104.180 km2)
 • Land40.026 sq mi (103.666 km2)
 • Water19.752 sq mi (51.157 km2)
Elevation
558 ft (170 m)
Population
 (2020)
 • Total
29,433
 • Estimate 
(2023)
36,013
 • RankTX: 102nd
 • Density900/sq mi (347.4/km2)
Time zoneUTC–6 (Central (CST))
 • Summer (DST)UTC–5 (CDT)
ZIP Codes
78155–78156
Area code830
FIPS code48-66644
GNIS feature ID2411860
Sales tax8.25%
Websiteseguintexas.gov

Seguin (/sɪˈɡn/ sih-GHEEN) is a city in and the county seat of Guadalupe County, Texas, United States. Its population was 29,433 at the 2020 census, and according to 2023 census estimates, the city had a population of 36,013.