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
The courthouse will be closed April 18th and 21st for the Easter holiday.
The Treasurer’s Office will be closed May 2nd.
The Assessor’s office will be closed May 2nd.
The Treasurer’s office will be closed May 14th & 15th.
Meetings
Commissioner Meeting May 6, 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.