The county lies entirely within theRosebud 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 anIndian reservation.[5] The county'sper-capita income makes it the thirdpoorest county in the United States. Unlike many rural counties in South Dakota, since 1960, its net population has increased.
Until 1981 Todd, Shannon (nowOglala Lakota), andWashabaugh were the last unorganized counties in the United States. Although then organized, Todd did not receive a home rule charter until 1983. It contracts with Tripp County for its Auditor, Treasurer, and Registrar of Deeds.[6]
Todd County lies on the south line of South Dakota. Its south boundary line abuts the north boundary line of the state ofNebraska. Its terrain consists of semi-arid rolling hills, cut by gullies and drainages which flow to the northeast. The land is partially dedicated to agriculture, includingcenter pivot irrigation.[7] The terrain slopes to the northeast, and its highest point is near the SW corner, at 3,176 ft (968 m) ASL.[8]
The eastern portion of South Dakota's counties (48 of 66) observeCentral Time; the western counties (18 of 66) observeMountain Time. Todd County is the westernmost of the SD counties to observe Central Time.[9]
Todd County has a total area of 1,391 square miles (3,600 km2), of which 1,389 square miles (3,600 km2) is land and 2.3 square miles (6.0 km2) (0.2%) is water.[10]
Todd County, South Dakota – Racial composition Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.
As of the2020 census, there were 9,319 people, 2,570 households, and 1,889 families residing in the county.[20] The population density was 6.7 inhabitants per square mile (2.6/km2).[20]
Of the residents, 39.7% were under the age of 18 and 8.3% were 65 years of age or older; the median age was 25.1 years. For every 100 females there were 94.1 males, and for every 100 females age 18 and over there were 89.4 males.[20]
There were 2,570 households in the county, of which 53.7% had children under the age of 18 living with them and 39.4% had a female householder with no spouse or partner present. About 22.0% of all households were made up of individuals and 6.9% had someone living alone who was 65 years of age or older.[20]
There were 2,875 housing units, of which 10.6% were vacant. Among occupied housing units, 49.5% were owner-occupied and 50.5% were renter-occupied. The homeowner vacancy rate was 0.2% and the rental vacancy rate was 6.8%.[20]
As of the2010 census, there were 9,612 people, 2,780 households, and 2,091 families in the county. The population density was 6.9 inhabitants per square mile (2.7/km2). There were 3,142 housing units at an average density of 2.3 units per square mile (0.89 units/km2). The racial makeup of the county was 88.1% American Indian, 9.6% white, 0.2% black or African American, 0.2% Asian, 0.2% from other races, and 1.8% from two or more races. Those of Hispanic or Latino origin made up 2.4% of the population. In terms of ancestry, 5.1% wereGerman, and 1.1% wereAmerican.
Of the 2,780 households, 55.9% had children under the age of 18 living with them, 28.5% were married couples living together, 34.7% had a female householder with no husband present, 24.8% were non-families, and 21.1% of all households were made up of individuals. The average household size was 3.45 and the average family size was 3.95. The median age was 24.0 years.
The median income for a household in the county was $25,196 and the median income for a family was $29,010. Males had a median income of $26,971 versus $30,211 for females. The per capita income for the county was $11,010. About 44.2% of families and 48.8% of the population were below thepoverty line, including 59.0% of those under age 18 and 45.7% of those age 65 or over.
Todd County heavily leans Democratic in politics. Similar to most other Native American-majority counties,Hillary Clinton won the majority of votes in Todd County in 2016. In 2020, Joe Biden received a larger majority of the county vote. The last election in which the Republican nominee won the county was in 1960 which theRichard Nixon-Henry Cabot Lodge Jr. ticket carried the county.
United States presidential election results for Todd County, South Dakota[22]