Arlington is a city in Tarrant County, Texas (USA) within the Dallas-Fort Worth-Arlington metropolitan area. According to a U.S Census Bureau release, as of July 1, 2006 Arlington has an estimated population of 367,197. Arlington is the 7th largest city in Texas and the 49th largest city in the United States.

Located approximately 12 miles (19 km) east of downtown Fort Worth and 20 miles (32 km) west of downtown Dallas, Arlington is home to the Texas Rangers' Ballpark in Arlington and the theme parks Six Flags Over Texas, which is the original Six Flags, and Hurricane Harbor. The Dallas Cowboys' new stadium will also be located in Arlington. The city borders Kennedale, Grand Prairie, Mansfield and Fort Worth, and surrounds the smaller communities of Dalworthington Gardens and Pantego.