According to Cutler's History of the State of Kansas, "Allen County is located in the southeastern part of the State, in the second tier of counties west of the Missouri River, and about fifty miles north of Indian Territory. In extent it is twenty-one miles north and twenty-four miles east and west, containing 504 square miles, or 322,560 acres. The county is divided into ten townships as follows: Osage, Deer Creek, Geneva, Iola, Elm, Marmaton, Elsinore, Salem, Humboldt, Cottage Grove."