Ellenton is a census-designated place (CDP) in Manatee County, Florida, United States. The population was 3,142 at the 2000 census. It is part of the Bradenton–Sarasota–Venice Metropolitan Statistical Area.
Ellenton is located at 27°31′22″N 82°31′33″W / 27.52278°N 82.52583°W / 27.52278; -82.52583 (27.522666, -82.525867).
According to the United States Census Bureau, the CDP has a total area of 4.8 square miles (12.5 km²), of which, 3.7 square miles (9.5 km²) of it is land and 1.1 square miles (3.0 km²) of it (23.70%) is water.