Contact Information
Main Office
Address:
Lake County Treasurer
200 E Center St
Madison SD 57042
Phone:
605-256-7618
Fax:
605-256-7624
Office Hours:
8:00 am – 5:00 pm
Monday – Friday (excluding Holidays)
Announcements
Courthouse Closed
Saturday, November 22, 2025
The Lake County Courthouse will be closed Thursday, November 25 and Friday, November 26 in observance of Thanksgiving.
Plat Deadline 12/1
Tuesday, November 18, 2025
Complete Plats due for the 12/16/25 meeting