Mahaska County Landfill 2979 Highway 63 Oskaloosa, IA 52577 Phone : (641) 673-9266 Business Category Government Offices-County Legislative Bodies Mahaska County Of--solid Waste Removal & Recycling Information, Landfill 2979 Highway 63 Oskaloosa, IA 52577 Phone : (641) 673-9266 Business Category Government Offices-County Government Offices & Public Schools