jackson county is the only florida county that borders two states, alabama and georgia. jackson county has an area of approximately 942 square miles and a population of approximately 49,000. located within the county are 11 municipalities: alford, bascom, campbellton, cottondale, graceville, grand ridge, greenwood, jacob, malone, marianna and sneads. the city of marianna is the largest of the municipalities and the county seat. all permitting information and forms available for downloading and printing at this site.