College Station is a city in Brazos County, Texas, situated in East-Central Texas in the heart of the Brazos Valley, in the center of the region known as Texas Triangle. It is 90 miles northwest of Houston and 87 miles northeast of Austin. As of the 2010 census, College Station had a population of 93,857, which had increased to an estimated population of 117,191 as of September 2017. College Station and Bryan together make up the Bryan-College Station metropolitan area, the 14th-largest metropolitan area in Texas with 255,589 people as of 2015.College Station is home to the main campus of Texas A&M University, the flagship institution of the Texas A&M University System. The city owes both its name and existence to the university's location along a railroad.