Basic information about the Sully County
The Sully County is located in the state of South Dakota. This county occupies 1071 square miles, with 64 square miles being water areas. There are 1.373 inhabitants living in the county according to the 2010 Census. As for the racial makeup of Sully County citizens, the 3 largest groups are White (96.58%), followed by Two or More races (2.18%) and American Indian and Alaska Native (1.17%). There are 610 households in the county, while 65,08% of them are family households and 34,92% represent non family households. There are 3 cities and towns in Sully County. The most populated city is Onida city and the smallest town or village is Cow Creek CDP.