Lake Mystic is an unincorporated community and census-designated place in Liberty County, Florida, United States. As of the 2020 census, Lake Mystic had a population of 510. Geography According to the U.S. Census Bureau, the community has an area of ; of its area is land, and is water.
Demographics Lake Mystic first appeared as a census designated place in the 2010 U.S. census.
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