Long Key State Park is a 965-acre Florida State Park located on Long Key, one of the Florida Keys, in Monroe County, Florida, United States. It is at mile marker 67.5 on U.S. 1, 67400 Overseas Highway.
Location: Monroe County, Florida, United States
Nearest city: Long Key, Florida
Area: 965 acres (3.91 km²)
Governing body: Florida Department of Environmental Protection