Tombigbee National Forest is a U.S. National Forest in eastern and northeastern Mississippi. It is named for the nearby Tombigbee River. It is divided geographically into two non-contiguous sections. The larger southern section, about 60% of the total acreage, is located north of Louisville, in parts of Winston, Choctaw, and Oktibbeha counties in eastern Mississippi. The smaller northern section, about 40% of the total acreage, is located northeast of Houston, in parts of Chickasaw and Pontotoc counties in northeastern Mississippi. As a whole the forest lies, in descending order of land area, in Winston, Chickasaw, Choctaw, Pontotoc, and Oktibbeha counties. The forest has a total area of 67,005 acres (105 sq mi, or 271 km²). The forest is headquartered in Jackson, as are all six National Forests in Mississippi, but there are local ranger district offices located in Ackerman.