Fall River County, South Dakota

Fall River County is a located in the  of. As of, the population is 7,453. Its is.

Geography
According to the, the county has a total area of 4,530 (1,749 ). 4,506 km² (1,740 sq mi) of it is land and 24 km² (9 sq mi) of it (0.53%) is water.

Townships
The county is divided into three : Argentine, Provo, and Robins; and two areas of unorganized territory: Northeast Fall River and Southwest Fall River.

Adjacent counties

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

Demographics
As of the of 2000, there were 7,453 people, 3,127 households, and 1,976 families residing in the county. The was 2/km² (4/sq mi). There were 3,812 housing units at an average density of 1/km² (2/sq mi). The racial makeup of the county was 90.51%, 0.32% or , 6.05% , 0.23% , 0.05% , 0.30% from , and 2.54% from two or more races. 1.74% of the population were or  of any race.

There were 3,127 households out of which 23.70% had children under the age of 18 living with them, 50.90% were living together, 8.50% had a female householder with no husband present, and 36.80% were non-families. 32.70% of all households were made up of individuals and 14.60% had someone living alone who was 65 years of age or older. The average household size was 2.23 and the average family size was 2.82.

In the county, the population was spread out with 22.80% under the age of 18, 5.80% from 18 to 24, 20.60% from 25 to 44, 28.30% from 45 to 64, and 22.50% who were 65 years of age or older. The median age was 46 years. For every 100 females there were 109.80 males. For every 100 females age 18 and over, there were 103.80 males.