Liberty County is a county located in the state of Florida. As of the 2020 census , the population was 7,974,  making it the least populous county in Florida.  Its county seat is Bristol .
State Road 77 is a south-to-north highway running through northwestern Jackson County from Chipley, Florida in Washington County. The road has an overlap with SR 2 in Graceville and terminates at the Alabama State Line where it becomes AL 109.