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

Monday, May 5, 2025

The Yankton County Government Center and all other Yankton County non-emergency offices will be closed on Monday, May 26th, 2025 in honor of Memorial Day. Thank you to the brave men and women who have made the ultimate sacrifice.

Yankton County Treasurer

Thursday, May 1, 2025

Reminder: Yankton County residents that have last names starting with H, I and O have until May 31, 2025 to renew vehicle registration.

Yankton County Register of Deeds

Monday, April 14, 2025

The only third-party company South Dakota authorizes to order vital records (birth certificates, death certificates, marriage certificates) is at VitalChek with an option to order online using a credit card.
Fees for S.D. vital records are $15.00 per copy (ordered from the County Register of Deeds office) and $26.50 (ordered through Vital Chek) or $44.00 (ordered through Vital Chek with overnight shipping).

Yankton County Highway Department

Tuesday, April 1, 2025

The Yankton County Highway Department will begin their summer hours on Monday, April 07, 2025 and will run until further notice.

Summer hours are Monday through Thursday 6:30am to 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, & Sundays