It is located on Oklahoma State Highway 36 about 23.7 driving miles southwest of Lawton.

The Comanche County portion of Chattanooga is included in the Lawton, Oklahoma Metropolitan Statistical Area.

Chattanooga emerged after the opening of the Kiowa-Comanche-Apache Reservation to non-Indian settlement on August 6, 1901.

[5] The Chicago, Rock Island and Pacific Railway played a pivotal role in Chattanooga's early development, extending a branch line from Lawton in 1903.

Chattanooga, with rail access, quickly became an agricultural center, boasting three cotton gins, a lumberyard, a feed yard, and various small businesses by 1912.

[5] According to the United States Census Bureau, the town has a total area of 0.6 square miles (1.5 km2), all land.