population of fernandina beach fl
The 2014 Fernandina Beach, Florida, population is 11,573. There are 1,040 people per square mile (population density). The median age is 49.9. The US median is 37.2. 56.45% of people in Fernandina Beach, Florida, are married. 12.80% are divorced. The average household size is 2.37 people. 24.16% of people are married, with children. 13.54% have children, but are single.