Buffalo County Government
Gann Valley is the county seat of Buffalo County, as well as the center of population of South Dakota. Buffalo County Population: 1,962 (2019 census estimate)
The Buffalo County Courthouse is the headquarters of local government for the public. Auditor, Treasurer, Register of Deeds, Director of Equalization, and Sheriff offices are located in this building. Monthly meetings and other public events are conducted in the courtroom on the first Tuesday each month. For more information, please view their website: Buffalo County, SD.
Auditor & Register of Deeds
Contact: Debra Morrison
Address: 112 Osman Ave., PO Box 146, Gann Valley, SD 57341
Phone: (605) 293-3217 | Fax: (605) 293-3240 | Email: buffalo.aud@midstatesd.net
Courthouse Hours: Monday – Friday | 9:00am – 5:00pm
Clerk of Courts
Address: 300 S. Courtland St., Ste. 111, Chamberlain, SD 57325
Phone: (605) 734-4580 | Fax: (605) 734-4582
Courthouse Hours: Monday – Friday | 9:00am – 5:00pm
Commissioners
Rex Zastrow | Phone: (605) 933-1820 | Email: zastrow@midstatesd.net
Dawn Cable | Phone: (605) 894-4464 | Email: hdcable@midstatesd.net
Donita Loudner | Phone: (605) 682-9172 | Email: loudner_donita@yahoo.com
Director of Equalization, 911 Coordinator, RAVE
Contact: Lee Sinkie
Address: 112 Osman Ave., PO Box 175, Gann Valley, SD 57341
Phone: (605) 293-3286 | Fax: (605) 293-3240
Courthouse Hours: Monday – Friday | 9:00am – 5:00pm
Emergency Manager
Contact: Arlen Gortmaker
Phone: (605) 853-2769 | Email: hcem@handcounty.org
Highway Department
Contact: Tanner Grohs, Highway Superintendent
Address: PO Box 136, Gann Valley, SD 57341
Phone: (605) 293-3263 | Fax: (605) 293-3240 | Email: buffcohighway@midstatesd.net
Highway Hours: Monday – Thursday | 7:00am – 5:00pm
Sheriff
Contact: Wayne Willman
Address: 112 Osman Ave., PO Box 115, Gann Valley, SD 57341
Phone: (605) 293-3231 | Fax: (605) 293-3240 | Email: buffalocoso@midstatesd.net
State's Attorney
Contact: David Larson – Steve Fox
Address: PO Box 131, Chamberlain, SD 57325
Phone: (605) 234-2222 | Email: dlarson@larsonlawpc.com
Treasurer
Contact: Janice VonEye
Address: 112 Osman Ave., PO Box 165, Gann Valley, SD 57341
Phone: (605) 293-3236 | Fax: (605) 293-3240
Courthouse Hours: Monday – Friday | 9:00am – 5:00pm
Veterans Service Officer
Contact: Tim Thomas
Phone: (605) 234-4433 | Email: ttbsvso@midstatesd.net
Weed & Pest Supervisor
Contact: Lee Sinkie
Address: 112 Osman Ave., PO Box 146, Gann Valley, SD 57341
Phone: (605) 293-3286 | Fax: (605) 293-3240 | Email: buffalo.rod@midstatesd.net