Seguin is a city in and the county seat of Guadalupe County, Texas, United States. As of the 2010 census, its population was 25,175. By 2019, its population was estimated to be 29,992.Seguin, named in honor of Juan Seguín, a Tejano Texian freedom fighter and early supporter of the Republic of Texas, is one of the oldest towns in Texas, founded just 16 months after the Texas Revolution began. The frontier settlement was a cradle of the Texas Rangers... Show more

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