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 12/24 - 12/26
Wednesday, December 3, 2025
County Offices will be closed on Wednesday, December 24, Thursday, December 25 and Friday, December 26 in observance of Christmas.