TN postcode area
The TN area holds 40 districts and 23,179 live postcodes; its largest place is Hastings.
| District | Live postcodes | Largest place with its centre there |
|---|---|---|
| TN1 | 397 | Royal Tunbridge Wells |
| TN2 | 817 | Pembury |
| TN3 | 567 | Speldhurst |
| TN4 | 781 | Rusthall |
| TN5 | 411 | Wadhurst |
| TN6 | 859 | Crowborough |
| TN7 | 98 | Upper Hartfield |
| TN8 | 573 | Edenbridge |
| TN9 | 555 | Tonbridge |
| TN10 | 396 | — |
| TN11 | 594 | Hadlow |
| TN12 | 1,262 | Paddock Wood |
| TN13 | 801 | Sevenoaks |
| TN14 | 581 | Otford |
| TN15 | 948 | Kemsing |
| TN16 | 617 | Biggin Hill |
| TN17 | 668 | Cranbrook |
| TN18 | 351 | Hawkhurst |
| TN19 | 184 | Burwash |
| TN20 | 175 | — |
| TN21 | 713 | Horam |
| TN22 | 1,002 | Uckfield |
| TN23 | 1,031 | Ashford |
| TN24 | 772 | Kennington |
| TN25 | 756 | Wye |
| TN26 | 523 | Romney Marsh |
| TN27 | 642 | Headcorn |
| TN28 | 304 | New Romney |
| TN29 | 527 | Lydd |
| TN30 | 385 | Tenterden |
| TN31 | 541 | Rye |
| TN32 | 242 | Robertsbridge |
| TN33 | 488 | Battle |
| TN34 | 717 | Hastings |
| TN35 | 400 | Fairlight |
| TN36 | 104 | Winchelsea Beach |
| TN37 | 462 | — |
| TN38 | 660 | Saint Leonards-on-Sea |
| TN39 | 704 | — |
| TN40 | 571 | Bexhill-on-Sea |
Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Source: Office for National Statistics licensed under the Open Government Licence v3.0. Postcode data is the ONS Postcode Directory, August 2026 edition; counts are live postcodes with a usable location. Northern Ireland postcodes carry a separate licence and are not included; Scotland joins when the site's Scottish coverage does.