TN21 is in the county of East Sussex. It contains the town of Heathfield, as well as Cross in Hand, Horam, Maynard's Green, Tilsmore, and Punnett's Town. TN21 is 32km north-east of the city of Brighton and Hove. TN21 is a postcode district, also known as an outcode or outbound code.
The below map shows where TN21 is, and the boundary of the TN21 postcode district:
Postal Boundaries © GEOLYTIX copyright and database right 2012
TN21 is in the county of East Sussex.
| Heathfield | Town |
| Cross in Hand | Village |
| Horam | Village |
| Maynard's Green | Village |
| Tilsmore | Suburb |
| Punnett's Town | Village |
| Broad Oak | Village |
| Cade Street | Village |
| Rushlake Green | Village |
| Roser's Cross | Village |
| Little London | Village |
| Three Cups Corner | Village |
| Lions Green | Hamlet |
| Marle Green | Hamlet |
| Burlow | Village |
| Gun Hill | Hamlet |
| Waldron | Village |
| Foxhunt Green | Hamlet |
| Churches Green | Hamlet |
| Earl's Down | Hamlet |
| Vines Cross | Village |
| Dallington | Village |
| Mutton Hall | Suburb |
| Wood's Corner | Village |
| Chapel Cross | Hamlet |
| Old Heathfield | Village |
| Warbleton | Hamlet |
| Chapman's Town | Hamlet |
| North Corner | Hamlet |
| Cogger's Cross | Hamlet |
Position of TN21 relative to nearby towns. Distance is measured from the centre of TN21 to the centre of the town.
Position of TN21 relative to nearby cities. Distance is measured from the centre of TN21 to the centre of the city.