Limestone County is a county in the U.S. state of Texas. As of the 2020 census, its population was 22,146. Its county seat is Groesbeck. The county was created in 1846. Indians friendly to the settlers resided in East Texas before the Kiowa, Apache and Comanche intruded upon their territory. These tribes hunted, farmed the land, and were adept trader…Limestone County is a county in the U.S. state of Texas. As of the 2020 census, its population was 22,146. Its county seat is Groesbeck. The county was created in 1846. Indians friendly to the settlers resided in East Texas before the Kiowa, Apache and Comanche intruded upon their territory. These tribes hunted, farmed the land, and were adept traders. The Tawakoni branch of Wichita Indians originated north of Texas, but migrated south into east Texas. From 1843 onward, the Tawakoni were part of treaties made by both the Republic of Texas and the United States. Tawakoni were also sometimes known as Tehuacana. The Limestone County town of Tehuacana was settled on the former site of a Tehuacana village. The Waco people were also a branch of the Wichita Indians.