Jacksboro is a city in Jack County, Texas, United States. The population was 4,533 at the 2000 census. Jacksboro is located at the junction of U.S. Highways 281 and 380, and it is the county seat of Jack County.
Jacksboro is located at 33°13′24″N 98°09′39″W / 33.223355°N 98.160845°W / 33.223355; -98.160845 (33.223355, -98.160845).
According to the United States Census Bureau, the city has a total area of 6.8 square miles (17.6 km2), of which, 5.8 square miles (15.1 km2) of it is land and 1.0 square miles (2.6 km2) of it (14.54%) is water.