Here is a map of the approximate route of the Great Northern line in the London area along with the stations that are on the line.
| Station | Zone |
|---|---|
| King's Cross | 1 |
| Finsbury Park | 2 |
| Drayton Park | 2 |
| Harringay | 3 |
| Highbury and Islington | 2 |
| Hornsey | 3 |
| Essex Road | 2 |
| Alexandra Palace | 3 |
| Bowes Park | 3,4 |
| Old Street | 1 |
| New Southgate | 4 |
| Moorgate | 1 |
| Oakleigh Park | 4 |
| Palmers Green | 4 |
| New Barnet | 5 |
| Winchmore Hill | 4 |
| Hadley Wood | 6 |
| Grange Park | 5 |
| Enfield Chase | 5 |
| Gordon Hill | 5 |
| Crews Hill | 6 |
| Cuffley | 9 |