Less than 8 miles outside of Iowa City, Prairie Green School was located in the community of Cosgrove, which sits on a small hilltop in Johnson County. The school rented classrooms located in the Cosgrove Institute from 2011-2019. Prairie Green School also has access to the kitchen, library, gym, and stage. The Cosgrove Institute has ten acres of land which allows for plenty of green space to explore. A geothermal heating and cooling system was a recent environmental upgrade to this beautiful historic building.