Austin is the capital of the U.S. state of Texas and the seat of Travis County, although portions extend into Hays and Williamson counties. It is the city in the U.S. and the in Texas. It is the fastest growing large city in the United States and the second most populous capital city after Phoenix, Arizona. As of the U.S. Census Bureau’s July 1, 2015 estimate, Austin has a population of 931,830. Located in in the foothills of Texas Hill Country, the city is home to numerous lakes, rivers, and waterways including Lady Bird Lake, Barton Springs, McKinney Falls, the Colorado River, Lake Travis, and Lake Walter E. Long. It is the cultural and economic center of the metropolitan area, which had an estimated population of 2,056,405 as of July 1, 2016.In the 1830s, pioneers began to settle the area in central Austin along the Colorado River. In 1839, the site was officially chosen to replace Houston as the new capital of the Republic of Texas and was incorporated under the name “Waterloo.” Shortly thereafter, the name was changed to “Austin” in honor of Stephen F. Austin, the “Father of Texas” and the republic’s first secretary of state. The city subsequently grew throughout the 19th century and became a center for government and education with the construction of the Texas State Capitol and the University of Texas at Austin. After a lull in growth from the Great Depression, Austin resumed its development into a major city and, by the 1980s, it emerged as a center for technology and business. A number of Fortune 500 companies have headquarters or regional offices in Austin, including Amazon.com, Apple Inc., Cisco, eBay, Google, IBM, Intel, Oracle Corporation, Texas Instruments, 3M, and Whole Foods Market. Dell’s worldwide headquarters is located in nearby Round Rock, a suburb of Austin.