Palatka is a city in and the county seat of Putnam County, Florida, United States. Palatka is the principal city of the Palatka Micropolitan Statistical Area, which is home to 72,893 residents. The city is also home to St. Johns River State College, St. Johns River Water Management District Headquarters, and Ravine Gardens State Park. The area is well known for its local festivals, most notably the Florida Azalea Festival and the Blue Crab Festival. The population was 10,446 at the 2020 census.