Palmetto is a city in Manatee County, Florida, United States. As of the 2010 census, the population was listed as 12,606. It is part of the Bradenton–Sarasota–Venice Metropolitan Statistical Area.According to the United States Census Bureau, the city has a total area of 4.4 square miles (11 km2). 4.3 square miles (11 km2) of it is land and 0.1 square miles (0.26 km2) of it (2.92%) is water.
A post office called Palmetto has been in operation since 1868.Samuel Sparks Lamb is considered the "Father of Palmetto," having surveyed and plotted the city at its outset and donated several plots of land. He owned a general merchandise store in town.The city received its name from the palmetto trees near the original town site.