Lake County Of--director Of Equalization, Building Superintendent 200 E Center St Madison, SD 57042 Phone : (605) 256-7623 Business Category Government Offices-County Legislative Bodies Government Offices & Public Schools Lake County Of--lake County Bldg Maint Supv 219 Ne 1st St Madison, SD 57042 Phone : (605) 256-7623 Business Category Government Offices-County Government Offices & Public Schools Building Superintendent Office 219 Ne 1st St Madison, SD 57042 Phone : (605) 256-7623 Business Category Government Offices-County Legislative Bodies