Yankton County
Monday, October 5, 2026
The Yankton County Government Center and all other non-emergency offices in the county will be closed on Monday, October 12th, 2026 in observance of Native American Day.
Yankton County Auditor
Thursday, October 1, 2026
Absentee voting has started again as we have just received the new ballots. Make sure to bring your Photo ID and we will be able to help you in the Commission Chambers. Sample ballots are also available at our office or in the Commission Chambers as well
Yankton County Weed Department
Friday, September 18, 2026
The Yankton County Weed Department would like to remind Yankton County landowners that fall is a good time to take care of leafy spurge .
To learn more information, please click here
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.