Dallas (pronounce /ˈdæləs/) is the third-largest (as estimated by the United States Census Bureau on 1 July 2006) city in the state of Texas and the ninth-largest in the United States. The city covers 385 square miles (997 km²) and is the county seat of Dallas County. As of July 1, 2006, U.S. Census estimates the population of Dallas at over 1,200,000 people.