Some subdivision extend through more than one region and division. Only the portion of the subdivision in this division is shown.
| Subdivision | From | To | Length | Spurs | Authority | Time Table |
|---|---|---|---|---|---|---|
| Uxbridge | Lindsay, Ontario | Scarboro, Ontario | 60.9 miles | 6 | TT&TO & CTC | Uxbridge |
| York | Pickering Junction, Ontario | Macmillan Yard, Ontario | 25.2 miles | 10 | CTC 2 & 3 Tracks | York |
| Haliburton | Lindsay, Ontario | Haliburton, Ontario | 55.5 miles | 0 | TT&TO | Haliburton |
| Bala | Toronto, Ontario | Falding, Ontario | 146.2 miles | 15 | CTC 1 & 2 Tracks | Bala |
| Newmarket | Parkdale, Ontario | mile 113.5 | 111.1 miles | 21 | TT&TO & CTC with ABS | Newmarket |
| Weston | Toronto, Ontario | Halwest, Ontario | 17 miles | 10 | ABS & CTC | Weston |
| Oakville | Toronto, Ontario | mile 9.4 | 9.4 miles | 4 | CTC 3 & 4 tracks | Oakville |
| Beeton | Cheltenham, Ontario | Barrie, Ontario | 50.2 miles | 2 | TT&TO | Beeton |
| Halton | Macmillan Yard, Ontario | Burlington West, Ontario | 49.5 miles | 15 | CTC 2 & 3 Tracks | Halton |
| Guelph | Silver, Ontario | Acton, Ontario | 5.6 miles | 6 | TT&TO | Guelph |
| Midland | Orillia, Ontario | Midland, Ontario | 33.2 miles | 2 | TT&TO | Midland |
| Meaford | Barrie, Ontario | Meaford, Ontario | 52.2 miles | 1 | TT&TO | Meaford |
| Kingston | Newtonville, Ontario | Toronto, Ontario | 46.8 miles | 15 | CTC 2,3,&4 tracks | Kingston |