Arlington is a city in the U.S. state of Texas, within the Dallas–Fort Worth–Arlington metropolitan area and Tarrant County. According to the U.S. Wikipedia

Lafayette is a city located along the Vermilion River in southwestern Louisiana. The city of Lafayette is the fourth-largest in the state, with a population of 120,623 at the 2010 census. The combined statistical area of Lafayette–Opelousas-Morgan City was 611,774 according to 2012 estimates. Wikipedia