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 Highway
Wednesday, November 15, 2023

The Yankton County Highway Department will begin their winter hours on Monday, November 20, 2023 and will run until further notice.

Winter hours are Monday through Friday 6:45am-3:00pm.

Yankton County Conservation District
Monday, October 16, 2023

To view the Yankton County Conservation District's 2024 Plant Order Form please click here

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

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 © 2023. Developed by Intuvio Solutions.