The seat of Kimble County
, Junction is located northwest of San Antonio
where I-10 meets US 83 and US 377 at the confluence of the North and South Llano rivers.
Junction became the chief shipping and commercial center of Kimble County, as well as a tourist resort and hunting center. In the mid-1940s the cedar-oil business developed and enhanced the economy. The population was 1,464 in 1950 and 2,593 in 1980.
Junction continues to be the shipping and marketing center for Kimble County's livestock, wool, mohair, pecan, and grain production. It is also the hunting center for one of the state's leading deer-hunting counties. The town's other economic foundations include pecan processing, tourism, and a cedar-oil plant. Texas Tech University Center, a branch of Texas Tech University, is located in Junction.