Mineral Bluff is a census-designated place and unincorporated community located in Fannin County in the U.S. state of Georgia. Its population was 150 as of the 2010 census. The community is situated 6 miles northeast of the city of Blue Ridge, the county seat, 80 miles east of Chattanooga, Tennessee, and 100 miles north of Atlanta. It is the location of Mineral Bluff Depot, listed on the National Register of Historic Places.