Chattanooga is a town in Comanche and Tillman counties in the U.S. state of Oklahoma. The population was 461 at the 2010 census. The Comanche County portion of Chattanooga is included in the Lawton, Oklahoma Metropolitan Statistical Area.
Chattanooga is located at 34°25′23″N 98°39′18″W / 34.42306°N 98.655°W / 34.42306; -98.655 (34.423012, -98.655030).
According to the United States Census Bureau, the town has a total area of 0.5 square miles (1.3 km²), all land.