Fellsmere is a city in Indian River County, Florida, United States. It is home of the Fellsmere Frog Leg Festival and The National Elephant Center. Fellsmere is the first place in Florida where women were allowed to vote. In a municipal election on June 19, 1915, resident Zena M. Dreier became the first woman to legally cast a ballot in the American South, five years before the 19th Amendment established women's suffrage nationally.
The population was 5,197 at the 2010 census, up from 3,813 at the 2000 census. As of 2018, the estimated population was 5,754. Fellsmere is part of the Sebastian–Vero Beach Metropolitan Statistical Area.
Fellsmere in 1915 became the first town in Florida (or anywhere south of the Mason–Dixon line) to grant women the right to vote. It also at the same time held the first election in which corporations could vote. Mrs.