As Florida's only 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. 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. The Jackson County area consists of the Northern Highlands and the Marianna Lowlands.
Grand Ridge is one area located in the Northern Highlands which extends to Tallahassee.
Elevations vary from 50 to over 300 feet in this region. These elevations are unique in Florida and offer a great deal of relief. The Marianna Lowlands have elevations from near sea level to 245 feet, probably the result of stream erosion. This area is known for its many springs and caverns. Jackson County has many unique and special features, including wetlands, springs, sinkholes and forests.