The value of all farmsand rural real estate for sale in Georgia's Gilmer County recently was approximately $664 million, representing a total of 7,480 acres of land for sale in Gilmer County. Gilmer County ranks first in the Peach State for the combined amount of land currently advertised for sale. Ellijay had the most land for sale. Based on its natural assets, Gilmer County's economy is dependent on tourism and recreation. Gilmer County is Georgia's 52nd biggest county (430 square miles). It's located in the Blue Ridge Mountains Georgia region of the state.