what county is fort worth, tx in?
Fort Worth is the 16th-largest city in the United States and the fifth-largest city in the state of Texas. The city is in North Central Texas and covers nearly 350 square miles (910 km2) in the counties of Denton, Parker, Wise, and Tarrant, of which it is the county seat. According to the 2015 census, estimates, Fort Worth's population is 833,319.