Towns & Cities

The Place We Call Home

Yankton County, established in 1862, is located along the southern border of South Dakota along the Missouri River. The county encompasses a total area of 533 square miles with a population of 23,310 (2020 US Census estimate).

The primary industries in the county are agriculture, manufacturing, and services.

The county seat is located in the largest city in the county - Yankton (population 15,411).

Our Cities and Towns

Announcements

Yankton County
Tuesday, May 28, 2024

NOTICE OF POSSIBLE YANKTON COUNTY COMMISSION QUORUM

There may be a quorum of the Yankton County Commission on Wednesday, May 29, 2024, at 12 p.m. in the Elks Lodge at 504 W 27th St. A meeting put on by Yankton Thrive will be held that afternoon for the Economic Insights for Workforce & Housing with Jared McEntaffer.

Yankton County Auditor
Monday, May 13, 2024

Absentee Voting for the June 4th Primary begins on Friday, April 19th and runs until Monday, June 3rd. The absentee voting will take place in the County Commission Chambers from 9am to 5pm.

Also you have until Monday, May 20th to make any changes to your voter registration. Any questions please let our office know.

Yankton County Treasurer
Wednesday, May 1, 2024

Reminder: Yankton County residents that have last names starting with H, I and O have until May 31, 2024 to renew vehicle registration.

Yankton County Highway Department
Tuesday, April 2, 2024

The Yankton County Highway Department will begin their summer hours on Monday, April 02, 2024 and will run until further notice.

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

Yankton County Weed Department
Tuesday, April 2, 2024

The Yankton County Weed Department would like to remind that Yankton County landowners are required to control noxious weeds on their property. The Weed Department will begin their inspections on May 1, 2024.

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

Yankton County YouTube Channel

Yankton County © 2024. Developed by Intuvio Solutions.