Departments

Yankton County Auditor's Office

The Auditor's Office is located on the first floor of the Yankton County Government Center building, in the northwest corner.

Hours of Operation:

Monday through Friday
9:00am to 5:00pm

Phone:

(605) 260-4400 Opt. 0

Fax:

(605) 260-4494

Address:

321 W 3rd St., Suite 100
Yankton, SD 57078

Attention:

  • The last day to make any changes to your voter registration or to register to vote is Monday, October 19th by 5pm. If you would like to make any changes or to check out your current status please give our office a call or stop by.

Services provided by the Auditor's Office:

  • Voter Registration
  • Personnel Office
  • County Budgets
  • Accounts Payable
  • Tax Levies
  • Liquor Licenses
  • Medical Cannabis Establishment Licenses

Commission Meeting Agenda Policy and Form

Please complete the form and return to the Auditor's Office. Agenda item requests may be submitted in writing or electronically but all required information must be attached with the request. Submission Deadline: 3:00pm on the Wednesday before scheduled meeting.

Medical Cannabis

Yankton County adopted a new ordinance regulating Medical Cannabis Establishments that took effect on November 4, 2021. To view the ordinance please click here.

Budget Information

Township Contact Information

Staff

Patty Hojem

Auditor 605-260-4436 Send an Email

Kasi Foss

Deputy Auditor; Accounts Payable Clerk

Alyssa Lange

Accounts Receivable Clerk; Website Administrator

Kim Mraz

Payroll Clerk

Announcements

Yankton Planning & Zoning Office
Thursday, October 15, 2026

To read about the Proposed Article 30 – Data Centers Ordinance you can click here

Yankton County Auditor
Tuesday, October 13, 2026

The last day to make any changes to your voter registration or to register to vote is Monday, October 19th by 5pm. If you would like to make any changes or to check out your current status please give our office a call or stop by.

Yankton County Treasurer
Thursday, October 1, 2026

A reminder to all residents that the second half of property taxes is due by October 31st. There are several convenient ways to pay. You can pay in person, by mail, by our secure drop boxes or you can pay on-line. For more information please see the Treasurer's page under the Departments tab or call our office.

Yankton County Weed Department
Friday, September 18, 2026

The Yankton County Weed Department would like to remind Yankton County landowners that fall is a good time to take care of leafy spurge .

To learn more information, please click here

Yankton County Register of Deeds
Monday, September 14, 2026

As of September 14, 2026, the state has implemented a new vital records system. Please expect a delay in all services as we learn and navigate this new software.

September 14th – October 16th you will need to make an appointment to apply for a marriage license. Plan for this to take at least 30 minutes.

Notary services will not be available from September 14th – October 2nd.

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

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