Austin () is the capital of the US state of Texas and the seat of Travis County. Located in , Austin is the city in the United States and the city in Texas. It is the fastest growing of the largest 50 US cities. Austin is also the second largest state capital in the United States, after Phoenix, Arizona. As of July 1, 2014, Austin had a population of 912,791 (U.S. Census Bureau estimate). The city is the cultural and economic center of the metropolitan area, which had an estimated population of 1,943,299 as of July 1, 2014.