History of Yankton County

Bordered on the south by the Missouri River, Yankton County has played an integral part in South Dakota history.

1861 heralded the first territorial government, with the City of Yankton being designated the capital of Dakota Territory. Steamboat trade flourished and in 1873 the first railroad line connected Yankton and Sioux City, Iowa.

The County was named for the Yankton band of the Sioux Indians. History suggests that Meriwether Lewis and George Rogers Clark were the first white men to set foot on Yankton County soil. Pelagie LaBarge is the first known white woman to journey to Yankton County, arriving in 1847 with her husband, a steamboat captain. Joseph R. Hanson was the first settler in 1859. 1861 also witnessed the first official newspaper, “The Weekly Dakotan”, being published.

The first school, held in the home of Dr. Abram Van Osdel, opened in December of 1862. Governor Howard selected Yankton County as the site for the state insane hospital in September of 1878. Yankton City and County lost the fight to retain the status of Territorial Capital in 1883 and the capital was moved to Bismark, ND.

The rich history of the County is preserved through many landmark buildings, historical sites and the written word.


Road and Bridge Levy: How will it affect you?
Tuesday, July 26, 2016
EMS - 2016 CPR Schedule
Thursday, July 14, 2016
Highway Department - Notice to Irrigators
Thursday, May 5, 2016

We will be enforcing irrigators that are overspraying so please make sure you are checking your center pivots and only spraying on land authorized for irrigation.

Weed Dept - Noxious Weed
Tuesday, April 12, 2016

Noxious Weeds MUST be controlled. Inspections will begin on May 1, 2016.
Click here for more details

Highway Department Hours
Monday, April 4, 2016

We are currently in our Summer Hours, which are 6:30am thru 5:00pm Monday thru Thursday.

Highway Department Quote Listing
Thursday, March 3, 2016

If you are interested in being on the Highway Department's Quote List for Projects under $50,000 (per SDCL-5-15A-14), please Contact Us.

Observed Holidays
Friday, January 1, 2016

New Year's Day, Martin Luther King Jr. Day, President's Day, Memorial Day, Independence Day, Labor Day, Veteran's Day, Thanksgiving Day and the following day, Christmas Day

2016 Calendar
Friday, January 1, 2016

Upcoming Meetings

Planning Commission Meeting

Date: August 9, 2016
Time: 7:00
Place: Commission's Meeting Room in Government Center

Commission Meeting

Date: August 2, 2016
Time: 4:00
Place: Commission's Meeting Room in Government Center

AG Overlay District Committee

Date: July 28, 2016
Time: 7:00
Place: Commission's Meeting Room in Government Center

Main Phone:

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 © 2016. Developed by Intuvio Solutions.