N
25 districts, 17,673 postcodes
Haringey, Islington, Enfield, Barnet, Hackney, Camden, and others
| District | Postcodes | Local authority |
|---|---|---|
| N1 | 2,287 | Islington |
| N10 | 509 | Haringey |
| N11 | 612 | Barnet |
| N12 | 698 | Barnet |
| N13 | 529 | Enfield |
| N14 | 691 | Enfield |
| N15 | 713 | Haringey |
| N16 | 1,124 | Hackney |
| N17 | 1,135 | Haringey |
| N18 | 548 | Enfield |
| N19 | 639 | Islington |
| N1C | 82 | Camden |
| N1P | 861 | Islington |
| N2 | 544 | Barnet |
| N20 | 535 | Barnet |
| N21 | 557 | Enfield |
| N22 | 718 | Haringey |
| N3 | 630 | Barnet |
| N4 | 872 | Haringey |
| N5 | 415 | Islington |
| N6 | 495 | Haringey |
| N7 | 900 | Islington |
| N8 | 698 | Haringey |
| N81 | 3 | Haringey |
| N9 | 878 | Enfield |