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
County Offices Closed 7/4/25
Monday, June 30, 2025
County Offices will be closed Friday, July 4th in observance of Independence Day
Plat Deadline 6/30
Tuesday, June 17, 2025
Complete Plats due for the 7/15/25 meeting