Todd County is a county located in the state of South Dakota. Based on the 2010 census, the population was 9,612. Todd County does
not have its own county seat. Instead, Winner in neighboring Tripp County serves as its administrative center. Its largest city is
Mission. The county was created in 1909, although it remains unorganized. The county was named by European-American settlers after John Blair
Smith Todd, who was a delegate from Dakota Territory to the United States House of Representatives and a general in the Union Army during the
American Civil War.
The county lies entirely within the Rosebud Indian Reservation and is coterminous with the main reservation (exclusive of off-reservation trust lands, which lie in four nearby counties). Its southern border is with the state of Nebraska. It is one of five South Dakota counties entirely within an Indian reservation.
Todd is named for John Blair Smith Todd, the first Congressional Delegate from Dakota Territory.
County QuickFacts: Census Bureau Quick Facts
Todd County was created in 1909 and organized in December of 1981. A Home Rule Charter was signed January 1, 1983. The county was named for John Blair Smith Todd, who was the first delegate to Congress from Dakota Territory. The county contracts with Tripp County for the duties of Auditor, Treasurer and Register of Deeds.
As reported by the Census Bureau, the county has a total area of 1,391 square miles (3,602 km2), of which,
1,388 square miles (3,595 km2) of it is land and 3 square miles (7 km2) of it (0.20%) is water.
Bordering counties are as follows: