Sully County, South Dakota

Sully County is a located in the  of. As of, the population is 1,556. Its is. The county is named after General who built Fort Sully.

Geography
According to the, the county has a total area of 2,772 (1,070 ). 2,608 km² (1,007 sq mi) of it is land and 164 km² (63 sq mi) of it (5.93%) is water.

Townships
The county is divided into two areas of unorganized territory: West Sully and East Sully.

Major highways

 * [[Image:US 83.svg|20px]]
 * [[Image:SD 1804.svg|23px]]

Adjacent counties

 * - north
 * - east
 * - south
 * - southwest
 * - northwest

Demographics
As of the of 2000, there were 1,556 people, 630 households, and 442 families residing in the County. The was 1/km² (2/sq mi). There were 844 housing units at an average density of 0/km² (1/sq mi). The racial makeup of Sully County was 97.81%, 0.77% , 0.13% , 0.13% from , and 1.16% from two or more races. 0.77% of the population were or  of any race.

There were 630 households out of which 31.00% had children under the age of 18 living with them, 62.50% were living together, 4.30% had a female householder with no husband present, and 29.70% were non-families. 25.70% of all households were made up of individuals and 10.60% had someone living alone who was 65 years of age or older. The average household size was 2.47 and the average family size was 2.99.

In the County, the population was spread out with 25.50% under the age of 18, 6.10% from 18 to 24, 26.50% from 25 to 44, 24.40% from 45 to 64, and 17.40% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 105.50 males. For every 100 females age 18 and over, there were 108.50 males.