Ringgold is a town in Bienville Parish, Louisiana, United States. The population was 1,495 at the 2010 census. Ringgold is named for United States Army Major Samuel Ringgold, the hero of the Battle of Palo Alto near Brownsville, Texas, in the Mexican–American War. Ringgold, the son of a congressman from Maryland, was known for his particularly effective use of artillery. He was also the first American casualty of the Mexican War.It is unlikely that René-Robert Cavelier, Sieur de La Salle in his 1687 journey into Louisiana ever set foot in Bienville Parish. In 1690, the Ringgold area was explored by the scout Domingo Terán de los Ríos, whom the government of Mexico sent to determine the extent of the holdings of the Caddo Indians. He was considered the first white leader to sight what became the man-made Lake Bistineau. A priest with the expedition, Father Masinettes, established "Mission Loretteto." De los Rios was thereafter from 1891 to 1892 the first governor of Spanish Texas.