Contact Information
Main Office
Address:
Lake County Equalization
200 E Center St
Madison SD 57042
Phone:
605-256-7605
Fax:
605-256-7626
Office Hours:
8:00 am – 5:00 pm
Monday – Friday (excluding Holidays)
Announcements
County Offices Closed
Friday, December 19, 2025
County Offices will be closed on Thursday, January 1, 2026 in observance of New Years Day