Welcome to Mellette County
The Mellette County Courthouse is located at 321 E 4th Street in White River, South Dakota. Office hours are 8:00 a.m. to 5:00 p.m. Monday thru Friday. We are closed for lunch from 12:00-1:00. This web site includes information about each department in the county and the services provided by each, as well as important information pertaining to the goings on in the courthouse.
County News
As of November 5, 2025, the Auditor’s office will be closed indefinitely due to medical leave.
The Assessor’s office will be closed Friday November 7th.
Meetings
Commissioner Meeting November 4, 2025 – 9:00am
Public Notices
- Click here to view the Mellette County Burn Ban Resolution
- Building Permits are now required before any building can be constructed, moved, or altered in the county.