About Agar, South Dakota

Agar is a small town in Sully County, South Dakota, United States. The population was 76 as of the 2010 census. It functioned as a combined farm/ranch service center and small resort town as of 2010, its centennial year.

News from Agar

Agar Facts

  • Population Total: 76
  • Square Miles: 0.2
  • Area Code: 605
  • Elevation: 1850
  • Postal Codes: 57520
  • Timezone: North American Central