| 7 | Bluewater District School Board Former: Bruce County; and Grey County |
| 8 | Avon Maitland District School Board Former: Huron County; and Perth County |
| 9 | Greater Essex County District School Board Former: Essex County; and Windsor |
| 10 | Lambton Kent District School Board Former: Kent County; and Lambton County |
| 11 | Thames Valley District School Board Former: Elgin County; London; Middlesex County; and Oxford County |
| 12 | Toronto District School Board Former: City of York; East York; Etobicoke; Metropolitan Toronto; North York; Scarborough; and Toronto |
| 13 | Durham District School Board Former: Durham |
| 14 | Kawartha Pine Ridge District School Board Former: Northumberland-Clarington; and Peterborough County |
| 15 | Trillium Lakelands District School Board Former: Haliburton County; Muskoka; and Victoria County |
| 16 | York Region District School Board Former: York Region |
| 17 | Simcoe County District School Board Former: Simcoe County |
| 18 | Upper Grand District School Board Former: Dufferin County; and Wellington County |
| 19 | Peel District School Board Former: Peel |
| 20 | Halton District School Board Former: Halton |
| 21 | Hamilton-Wentworth District School Board Former: Hamilton; and Wentworth County |
| 22 | District School Board of Niagara Former: Lincoln County; and Niagara South |
| 23 | Grand Erie District School Board Former: Brant County; Haldimand; and Norfolk |
| 24 | Waterloo Region District School Board Former: Waterloo County |
| 25 | Ottawa-Carleton District School Board Former: Carleton; and Ottawa |
| 26 | Upper Canada District School Board Former: Lanark County; Leeds & Grenville County; Prescott & Russell County; and Stormont, Dundas & Glengarry County |
| 27 | Limestone District School Board Former: Frontenac County; and Lennox & Addington County |
| 28 | Renfrew County District School Board Former: Renfrew County |
| 29 | Hastings and Prince Edward District School Board Former: Hastings County; and Prince Edward County |
