Travis County is a county in south central Texas. The population was 1,290,188 at the 2020 census. It is the fifth-most populous county in Texas. Its county seat is Austin. Austin is also known as the capital of Texas.
Travis County is part of the Austin-Round Rock Metropolitan Statistical Area. It is located along the Balcones Fault. The physical boundaries of Austin are the Edwards Plateau to the west and the Blackland Prairie to the east.