Suwannee County is a county located in the U.S. state of Florida. Its county seat is Live Oak, Florida. Suwannee County is a prohibition or entirely dry county. Suwannee County was created in 1858 and was named after the Suwannee River, which forms the county's northern, western, and much of its southern border. Suwannee County has a total area of approximately 692 square miles of which 99% is land and 1% water. As of the 2000 census, there were 34,844 people, 13,460 households, and 9,691 families residing in Suwannee County, FL.