Departments

Yankton County Extension Office

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

Extension Office

Hours of Operation:

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

Phone:

(605) 665-3387

Fax:

(605) 665-2669

Address:

901 Whiting Drive
Yankton, SD 57078

Staff

Katie Doty

4-H Youth Development Coordinator Send an Email

Announcements

Yankton County

Friday, October 3, 2025

The Yankton County Government Center and all other non-emergency offices in the county will be closed on Monday, October 13th, 2025 in observance of Native American Day.

Yankton County Emergency Management

Thursday, October 2, 2025

Please view the link on learning more about the opportunity in receiving the flu shot free October 18th, at the Yankton High School Auxiliary Gym

Flu Shot Flyer

Yankton County Treasurer

Wednesday, October 1, 2025

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 box or you can pay on-line. For more information please see the Treasurer's page under the Departments tab or call our office.

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, & Sundays