Southlake is a city in northeastern Tarrant and southern Denton Counties in Texas. It is a suburb in the Dallas/Fort Worth Metroplex and is located near the cities of Grapevine, Colleyville, and Keller. Southlake is well known for its Southlake Town Square project, a shopping center located on State Highway 114 and Southlake Boulevard. A 2006 real estate survey has estimated the population of Southlake, Texas at 25,748.