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

Highway Department Hours
Sunday, November 25, 2018

We will be in our winter hours starting with Monday, November 26, 2018.
Monday-Friday, 7:00am - 3:00pm

Veteran's Service Office - Interested Drivers
Thursday, September 27, 2018

Please contact our office if you are interested in driving the DAV van.

2018 Calendar
Monday, January 1, 2018
Yankton County Emergency Management
Monday, January 1, 2018

You can text YCOEM to 85511 to receive up to date emergency information.

Yankton County Commission Meeting Policy & Form
Thursday, November 23, 2017

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 © 2018. Developed by Intuvio Solutions.