Clay County, South Dakota

Clay County is a located in the  of. As of, the population is 13,537. Its name is in honor of, famous American statesman, member of the from  and  in the 19th century. Its is.

Geography
According to the, the county has a total area of 1,079 (417 ). 1,066 km² (412 sq mi) of it is land and 13 km² (5 sq mi) of it (1.22%) is water.

Townships
The county is divided into twelve : Bethel, Fairview Garfield, Glenwood, Meckling, Norway, Pleasant Valley, Prairie Center, Riverside, Spirit Mound, Star, Vermillion.

Major Highways

 * [[Image:SD 19.svg|20px]]
 * [[Image:SD 46.svg|20px]]
 * [[Image:SD 50.svg|20px]]

Adjacent Counties

 * - north
 * - northeast
 * - east
 * - southeast
 * - southwest
 * - west

Demographics
As of the of 2000, there were 13,537 people, 4,878 households, and 2,721 families residing in the county. The was 13/km² (33/sq mi). There were 5,438 housing units at an average density of 5/km² (13/sq mi). The racial makeup of the county was 92.78%, 1.00% or , 2.66% , 1.95% , 0.01% , 0.29% from , and 1.31% from two or more races. 0.89% of the population were or  of any race.

There were 4,878 households out of which 28.00% had children under the age of 18 living with them, 45.00% were living together, 8.10% had a female householder with no husband present, and 44.20% were non-families. 31.00% of all households were made up of individuals and 8.00% had someone living alone who was 65 years of age or older. The average household size was 2.32 and the average family size was 2.93.

In the county, the population was spread out with 18.80% under the age of 18, 31.50% from 18 to 24, 23.80% from 25 to 44, 15.80% from 45 to 64, and 10.10% who were 65 years of age or older. The median age was 25 years. For every 100 females there were 94.30 males. For every 100 females age 18 and over, there were 92.50 males.