Astor is a census-designated place (CDP) in Lake County, Florida, United States. It is located along the St. Johns River between Lake George and Lake Dexter, across from the community of Volusia. The population was 1,487 at the 2000 census. It is part of the Orlando–Kissimmee Metropolitan Statistical Area.
Astor is located at 29°10′N 81°32′W / 29.167°N 81.533°W / 29.167; -81.533 (29.1639, -81.5346).