Arlington is a city in Tarrant County, with an approximate population of approximately 365,000 people, making it the seventh largest city within the state of Texas, and the third biggest within the Dallas Metroplex. Arlington is the biggest city in Texas that is not a county seat. Arlington City is bordered by some cities, like for example Mansfield, Kennedale and Grand Prairie. Dallas is located about twenty miles east of the city and the city of Forth Worth is situated roughly twelve miles west.
The city is home to various popular facilities, like for instance The Texas Rangers' Ballpark in Arlington, the University of Texas at Arlington, Cowboys Stadium, the International Bowling Campus, the headquarters of American Mensa, International Bowling Museum, the waterpark Hurricane Harbor and the theme parks Six Flags over Texas. It is even the head office of the Nuclear Regulatory Commission Region IV.
A tiny part of it extends into Dallas County, whilst most of Arlington City sits in Tarrant County. Therefore, there are two county court systems serving the city of Arlington.
Arlington City was originally founded along the Pacific and Texas Railway in the year 1876 and was named after the Arlington House of General Robert E. Lee. It was incorporated in the year 1884. By 1910, Arlington City had water, electricity, natural gas, and telephone services in addition to a public school system. Prior to WWII, the population grew to over four thousand.