Georgetown is a city in Texas and the county seat of Williamson County, Texas, United States. The population was 67,176 at the 2020 census. It is 30 miles north of Austin. Founded in 1875 from four existing colleges, the oldest of which had been founded 35 years earlier, Southwestern University is the oldest university in Texas. It is in Georgetown about one-half mile from the historic square. Georgetown has a notable range of Victorian commercial and residential architecture.