| name | office head of government | Mayor | image | Area (m²) | date founded | Elevation (m) | Country | administrative division | continent | latitude (°) | waterbody | longitude (°) | Website | population (people) | Demonym | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thornhill, Ontario |  | 62,900,000 | Canada | Ontario | Americas | 43.8161111111 | -79.4244444444 | website | 112,719 | Map | ||||||
| Vaughan |  | 273,560,000 | 1792 | 180 | Canada | Ontario | Americas | 43.8333333333 | -79.5000000000 | website | 306,233 | Map | ||||
| Stoney Creek, Ontario |  | 98,600,000 | 324 | Canada | Ontario | Americas | 43.2166671753 | -79.7500000000 | website | 69,470 | Map | |||||
| Stratford, Ontario |  | 26,950,000 | 1859 | 345 | Canada | Ontario | Americas | 43.3666648865 | -80.9666671753 | website | 31,465 | Map | ||||
| Whitby, Ontario |  | 146,530,000 | 1855 | 91 | Canada | Ontario | Americas | 43.8797225952 | -78.9416656494 | website | 128,377 | Map |