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 22,684 (2014 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 14,552).

Our Cities and Towns

Announcements

Yankton County Highway Department
Sunday, November 20, 2022

The Yankton County Highway Department will begin their winter hours on Monday, November 21, 2022.

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

Yankton County Soil Conservation District
Tuesday, October 11, 2022

To view the Yankton County Soil Conservation's 2022 Fall Newsletter please CLICK HERE.

To view the 2023 Order Form 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, & Sunday

Yankton County © 2022. Developed by Intuvio Solutions.