Junction is a city in and the county seat of Kimble County, Texas, United States. The population was 2,618 at the 2000 census. Junction is located at , approximately 105 miles (169km) northwest of San Antonio and 120 miles (190km) west of Austin in central Kimble County. According to the United States Census Bureau, the city has a total area of 2.3square miles (6.0Square kilometers), of which, 2.3square miles (6.0Square kilometers) of it is land and 0.44% is water. Junction is named for its location at the confluence of the North and South Llano Rivers.