The Florida State University (commonly referred to as Florida State or FSU) is an American public space-grant and sea-grant research university. Its primary campus is located on a 1,391.54-acre (5.631 km2) campus in Tallahassee, Florida, United States. It is a senior member of the State University System of Florida. Founded in 1851, it is located on the oldest continuous site of higher education in the state of Florida.