Departments

Yankton County Extension Office

The Extension Office is located next to the 4-H fairgrounds on Whiting Drive.

Extension Office

Monday through Friday
9:00am to 5:00pm

(605) 665-3387

(605) 665-2669

901 Whiting Drive
Yankton, SD 57078

Office Manager Send an Email

4-H Youth Development Coordinator Send an Email

Yankton County Treasurer's Office

Thursday, June 1, 2023

Reminder: Yankton County residents that have last names starting with K and L have until June 30, 2023 to renew vehicle registration.

Yankton County Emergency Management

Thursday, April 27, 2023

To learn more information on the burn ban, flooding/weather and other important county information from us, please click here

Yankton County Highway Department

Friday, April 14, 2023

The Yankton County Highway Department will begin their summer hours on Monday, April 17, 2023 and will run until further notice.

Summer hours are Monday through Thursday 6:30am-5:00pm.

Main Phone:
605.260.4400

Address:
321 West 3rd Street, Suite 100 Yankton, SD 57078

Office Hours:
9:00am - 5:00pm CST, Monday-Friday
Closed on Holidays, Saturdays, & Sunday