Seguin (pronounced /səˈgiːn/) is a city in Guadalupe County, Texas, in the United States. It is part of the San Antonio Metropolitan Statistical Area. As of the 2000 census, the city population was 22,011. It is the county seat of Guadalupe County.
Seguin was founded in 1838 by members of Mathew Caldwell's Gonzales Rangers on land originally granted to Umphries (or Humphries) Branch by the Mexican government, but was not incorporated until 1853. Its original name was Walnut Springs but was changed just six months later to honor Juan Seguín. Seguin became a stopping point and trade center for German immigrants along their route from the ports of Indianola and Galveston to the German settlements of New Braunfels and Fredericksburg.
For you Google earth geeks, Seguin is located at 29°34′28″N 97°57′55″W / 29.57444°N 97.96528°W / 29.57444; -97.96528 (29.574329, -97.965332)