Lyman County, South Dakota

Geography According to the U.S. Census Bureau, the county has a total area of 4,421 km² (1,707 mi²). 4,247 km² (1,640 mi²) of it is land and 174 km² (67 mi²) of it is water. The total area is 3.93% water.

Demographics As of the census of 2000, there are 3,895 people, 1,400 households, and 1,009 families residing in the county. The population density is 1/km² (2/mi²). There are 1,636 housing units at an average density of 0/km² (1/mi²). The racial makeup of the county is 64.75% White, 0.08% African American, 33.27% Native American, 0.23% Asian, 0.00% Pacific Islander, 0.05% from other races, and 1.62% from two or more races. 0.46% of the population are Hispanic or Latino of any race.

There are 1,400 households out of which 36.10% have children under the age of 18 living with them, 51.40% are married couples living together, 13.80% have a female householder with no husband present, and 27.90% are non-families. 24.60% of all households are made up of individuals and 10.50% have someone living alone who is 65 years of age or older. The average household size is 2.77 and the average family size is 3.29.

In the county, the population is spread out with 32.10% under the age of 18, 7.60% from 18 to 24, 25.90% from 25 to 44, 20.90% from 45 to 64, and 13.60% who are 65 years of age or older. The median age is 34 years. For every 100 females there are 104.60 males. For every 100 females age 18 and over, there are 102.10 males.

Cities and Towns

• Kennebec
• Lower Brule
• Oacoma
• Presho
• Reliance
• Vivian