All Hallows Preparatory School was created in 1938.
Meadowbrook Preparatory School was created in 1960.
Oakbrook Preparatory School was created in 1992.
Emerson Preparatory School was created in 1852.
Luther Preparatory School was created in 1995.
Edison Preparatory School was created in 1954.
Northwestern Preparatory School was created in 1865.
Brehm Preparatory School was created in 1982.
York Preparatory School was created in 1969.
Austin Preparatory School was created in 1961.
Cistercian Preparatory School was created in 1962.
Rutgers Preparatory School was created in 1766.