Sully County, county in South Dakota, United States. As of 2020 county had an estimated population of 1,391 inhabitants. The county was created 115 years ago in 1909. Its county seat is Onida.
There are 2 city/town in Sully County, SD. The largest city of Sully County is Onida with a population of 628. Other cities include and Agar population 80
Agar, Town in South Dakota, United States of America
List of cities, towns, neighborhoods & other populated places in Sully County.
City Name | Title | Population |
---|---|---|
Agar | Town in South Dakota, United States of America | 80 |
Onida | City in and county seat of Sully County, South Dakota, United States | 628 |