Mill Valley Junior School is a small Kindergarten to Grade 5 school with a strong sense of community. The school opened in 1969 and was built as an open-concept school. Walls have been erected in the pod areas to create separate classrooms.

Mill Valley's crest depicts a mill in the valley along the Etobicoke Creek. Just as the waters of the creek kept the mill wheel moving, we at Mill Valley Junior School endeavour to keep the education of our students ever-moving to keep them in tune with our ever-changing world.

Mill Valley Child Care Centre is located on the second floor in the school building.