The lower school, is for students from Senior Kindergarten to Grade 5.

There is also a Junior School, suitable for children ranging from pre-school to Senior Kindergarten.

Since 2003, UCC has offered places from Senior Kindergarten to Grade Twelve.

Upper Canada College educates boys from Senior Kindergarten through to Grade Twelve.

The North Campus includes classes from Nursery through Grade 8 and the South Campus includes Senior Kindergarten through Grade 8.

The move brought enrollment from 360 to 455 in one year, including three new Junior Kindergarten classes, extra Senior Kindergarten and an additional Grade 1 class.

Year 1: Senior Kindergarten (SKG)

Senior Kindergarten (5-6 years old)

The French Immersion program begins in Senior Kindergarten.

Northlea is a dual track school offering regular English programs from Junior Kindergarten to Grade 8, and French Immersion programs from Senior Kindergarten to Grade 8.