ATLANTIC, a city in the south-west part of Iowa, U.S.A., 5om. E. by N. of Omaha; the attractive county seat of Cass county. It is at the intersection of highways 71 and 32 and is served by the Rock Island railway. It has an intermediate land ing field for aeroplanes, lighted with beacons by the post office department. The population according to the Federal census of 1930 was 5.585. Atlantic is the trade centre for a rich farming region, and has large corn-canning plants, flour mills and grain elevators, poultry-feeding yards and packing houses. It was char tered as a city in 1869.