Clark County, South Dakota

Clark County is a located in the  of. As of, the population is 4,143. Its is.

Geography
According to the, the county has a total area of 2,507 (968 ). 2,481 km² (958 sq mi) of it is land and 26 km² (10 sq mi) of it (1.02%) is water.

Townships
The county is divided into twenty-seven : Ash, Blaine, Collins, Cottonwood, Darlington, Day, Eden, Elrod, Fordham, Foxton, Garfield, Hague, Lake, Lincoln, Logan, Maydell, Merton, Mount Pleasant, Pleasant, Raymond, Richland, Rosedale, Spring Valley, Thorp, Warren, Washington, and Woodland.

Major highways

 * [[Image:US 212.svg|23px]]
 * [[Image:SD 20.svg|20px]]
 * [[Image:SD 25.svg|20px]]
 * [[Image:SD 28.svg|20px]]

Adjacent counties

 * - north
 * - east
 * - southeast
 * - south
 * - southwest
 * - west

Demographics
As of the of 2000, there were 4,143 people, 1,598 households, and 1,110 families residing in the county. The was 2/km² (4/sq mi). There were 1,880 housing units at an average density of 1/km² (2/sq mi). The racial makeup of the county was 98.65%, 0.07% or , 0.60% , 0.10% , 0.02% , 0.19% from , and 0.36% from two or more races. 0.48% of the population were or  of any race.

There were 1,598 households out of which 29.30% had children under the age of 18 living with them, 61.60% were living together, 4.70% had a female householder with no husband present, and 30.50% were non-families. 28.10% of all households were made up of individuals and 16.40% had someone living alone who was 65 years of age or older. The average household size was 2.54 and the average family size was 3.14.

In the county, the population was spread out with 27.00% under the age of 18, 5.80% from 18 to 24, 22.00% from 25 to 44, 23.00% from 45 to 64, and 22.20% who were 65 years of age or older. The median age was 42 years. For every 100 females there were 97.40 males. For every 100 females age 18 and over, there were 97.40 males.