Yankton County Register of Deeds
Monday, September 14, 2026
As of September 14, 2026, the state has implemented a new vital records system. Please expect a delay in all services as we learn and navigate this new software.
September 14th – October 16th you will need to make an appointment to apply for a marriage license. Plan for this to take at least 30 minutes.
Notary services will not be available from September 14th – October 2nd.
Yankton County Highway Department
Wednesday, September 2, 2026
Yankton County is in the process of updating our Five-Year Highway and Bridge Improvement Plan. A public meeting will be held to discuss and answer questions about the proposed updated plan. The meeting will be held on Thursday, September 17, 2026, at 6:00 p.m. at the Government Center in the Commissioner Meeting Room. Click here to read notice
Yankton County Treasurer
Tuesday, September 1, 2026
Reminder: Yankton County residents that have last name starting with S, have until September 30, 2026 to renew vehicle registration.