The Choctaw Nation (Choctaw: Chahta Okla) (est. 1830) is an American Indian territory covering about 6,952,960 acres (28,138 km2; 10,864 sq mi), occupying portions of southeastern Oklahoma in the United States. It is the third-largest federally recognized tribe in the United States and the second-largest Indian reservation in area after the Navajo. As of 2011, the tribe has 223,279 enrolled members, of whom 84,670 live within the state of Oklahoma and 41,616 live within the Choctaw Nation's jurisdiction. A total of 233,126 people live within these boundaries, with its tribal jurisdictional area compromising 10.5 counties in the state.
By area, the Choctaw Nation is larger than eight U.S. states – Hawaii, Massachusetts, Vermont, New Hampshire, New Jersey, Connecticut, Delaware and Rhode Island – and is larger than the combined area of the last three (Connecticut through Rhode Island).