In the 2017–2018 school year, enrolment was approximately 750 students.

In 1892 they moved into a new purpose built building on Wells Street that would later become the Wells Street Public School after the High School moved to their current location on Dunning Avenue in 1952.

Williams is one of the YRDSB's International Baccalaureate candidate schools.

[3] In 2018, the Ontario Ministry of Education approved funding to replace the current Dr. G.W.

Williams school building, and to build the replacement on a site approximately 3 km (1.9 mi) northeast of the current school's location.