Glencoe is a census-designated place in Volusia County, Florida, United States. The population was 2,582 at the 2010 census. Glencoe is located at 29°0′35″N 80°57′57″W / 29.00972°N 80.96583°W. According to the United States Census Bureau, the CDP has a total area of 6.42 square miles, of which 6.39 square miles is land, and 0.037 square miles is …Glencoe is a census-designated place in Volusia County, Florida, United States. The population was 2,582 at the 2010 census. Glencoe is located at 29°0′35″N 80°57′57″W / 29.00972°N 80.96583°W. According to the United States Census Bureau, the CDP has a total area of 6.42 square miles, of which 6.39 square miles is land, and 0.037 square miles is water.