Astor is an unincorporated community and census-designated place in Lake County, Florida, United States, located on the west side of the St. Johns River between Lake George and Lake Dexter. The community straddles State Road 40, with the community of Volusia in Volusia County across the St. Johns to the east and Astor Park to the west. The population was 1,487 at the 2000 census. It is part of the Orlando–Kissimmee–Sanford Metropolitan Statistical Area.

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