Yankton County, South Dakota

Yankton County is a located in the  of. As of 2000, the population was 21,652. Its is.

Geography
According to the, the county has a total area of 1,379 (533 ). 1,351 km² (522 sq mi) of it is land and 29 km² (11 sq mi) of it (2.08%) is water. It is bordered by the.

Townships
The county is divided into nine : Gayville, Jamesville, Marindahl, Mayfield, Mission Hill, Turkey Valley, Utica, Volin, Walshtown; and two areas of unorganized territory: Southeast Yankton and West Yankton.

Adjacent Counties

 * - northeast
 * - east
 * - southeast
 * - southwest
 * - west
 * - northwest

Demographics
As of the of 2000, there were 21,652 people, 8,187 households, and 5,403 families residing in the county. The was 16/km² (42/sq mi). There were 8,840 housing units at an average density of 7/km² (17/sq mi).

There were 8,187 households out of which 33.00% had children under the age of 18 living with them, 54.40% were living together, 8.30% had a female householder with no husband present, and 34.00% were non-families. 29.30% of all households were made up of individuals and 12.00% had someone living alone who was 65 years of age or older. The average household size was 2.43 and the average family size was 3.03.

In the county, the population was spread out with 25.70% under the age of 18, 8.70% from 18 to 24, 29.00% from 25 to 44, 22.00% from 45 to 64, and 14.60% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 101.90 males. For every 100 females age 18 and over, there were 101.30 males.

The racial makeup of the county is 95.10% White, 1.16%, 1.63% , 0.42% , 0.02% Pacific Islander, 0.74% from other races, and 0.91% from two or more races. 1.82% of the population are or  of any race.