Yankton County Auditor
Tuesday, October 13, 2026
The last day to make any changes to your voter registration or to register to vote is Monday, October 19th by 5pm. If you would like to make any changes or to check out your current status please give our office a call or stop by.
Yankton County Treasurer
Thursday, October 1, 2026
A reminder to all residents that the second half of property taxes is due by October 31st. There are several convenient ways to pay. You can pay in person, by mail, by our secure drop boxes or you can pay on-line. For more information please see the Treasurer's page under the Departments tab or call our office.
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.