Departments

Yankton County Sheriff's Office

The Sheriff's Office is located on the first floor of the Yankton County Courthouse and Safety Center building at 410 Walnut Street. Use the entrance on the south side of the building.

Phone:

(605) 668-3567

Fax:

(605) 260-2780

Address:

410 Walnut Street
Yankton, SD 57078

You can visit the Yankton County Sheriff's website for more information.

Preston Crissey

Yankton County Sheriff

Announcements

Yankton County Extension/4-H

Sunday, February 22, 2026

Our office hours for the week of February 23rd to February 27th will be Monday through Friday 8:00am to 5:00pm

To visit with Madison and to learn more about the exciting things going on at the Yankton County 4-H, you can call, email or stop by 901 Whiting Drive Yankton, SD

Yankton County Treasurer

Sunday, February 1, 2026

Reminder:
Yankton County residents that have last names starting with C, D and E have until February 28, 2026 to renew vehicle registration.

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