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 | |
| Country | United States | 
| State | Texas | 
| County | Guadalupe | 
| Founded | August 12, 1838 | 
| Incorporated | 1853 | 
| Government | |
| • Type | Council-Manager | 
| Area | |
|  • Total | 40.224 sq mi (104.180 km2) | 
| • Land | 40.026 sq mi (103.666 km2) | 
| • Water | 0.198 sq mi (51.157 km2) | 
| Elevation | 558 ft (170 m) | 
| Population  (2020) | |
|  • Total | 29,433 | 
|  • Estimate  (2023) | 36,013 | 
| • Rank | TX: 102nd | 
| • Density | 900.0/sq mi (347.4/km2) | 
| Time zone | UTC–6 (Central (CST)) | 
| • Summer (DST) | UTC–5 (CDT) | 
| ZIP Codes | 78155, 78156 | 
| Area code | 830 | 
| FIPS code | 48-66644 | 
| GNIS feature ID | 2411860 | 
| Sales tax | 8.25% | 
| Website | seguintexas.gov | 
Seguin (/sɪˈɡiːn/ sih-GHEEN) is a city in and the county seat of Guadalupe County, Texas, United States. The population was 29,433 at the 2020 census, and according to 2023 census estimates, the city is estimated to have a population of 36,013.