Aetna is a neighborhood in northeastern Gary, Indiana, south of Miller Beach and east of Interstate 65.

[1] Aetna borders directly on Miller Beach to the northeast, but is separated from the Emerson and Pulaski neighborhoods to the west by the industrial corridor along Interstate 65, and from the town of Lake Station to the south and east by the floodplain of the Little Calumet River.

Aetna's housing stock is dominated by small single-family homes,[2] with 89% occupancy and 66% owner-occupancy as of 2000.

Aetna is also near the much larger recreational areas of Miller Beach, such as Marquette Park and the Indiana Dunes National Lakeshore.

[6] The location was chosen in part for its remoteness, in rolling dune and swale country nearly a mile from the small town of Miller.