7th Ave E at U.S. Highway 27 in 2007. Havana is a town in Gadsden County, Florida, United States and suburb of Tallahassee. The population was 1,713 at the 2000 census. As of 2004, the population recorded by the U.S. Census Bureau is 1,703. It is part of the Tallahassee, Florida Metropolitan Statistical Area.