LL20 is in the county of Clwyd. It contains the town of Llangollen, as well as Glyn Ceiriog, Pontfadog, Froncysyllte, Garth, and Berwyn. LL20 is 15km south-west of the city of Wrexham. LL20 is a postcode district, also known as an outcode or outbound code.
The below map shows where LL20 is, and the boundary of the LL20 postcode district:
Postal Boundaries © GEOLYTIX copyright and database right 2012
LL20 is in the county of Clwyd.
| Llangollen | Town |
| Glyn Ceiriog | Village |
| Pontfadog | Village |
| Froncysyllte | Village |
| Garth | Village |
| Berwyn | Settlement |
| Trevor | Village |
| Rhewl | Hamlet |
| Pen-y-Coed | Suburb |
| Tregeiriog | Hamlet |
| Llanarmon Dyffryn Ceiriog | Village |
| Llwynmawr | Village |
| Pentrefelin | Hamlet |
| Geufron | Hamlet |
| Llandynan | Hamlet |
| Pandy | Hamlet |
| Pentre-dwfr | Hamlet |
| Garth Trevor | Village |
| Bedwlwyn | Hamlet |
| Pentre Cilgwyn | Hamlet |
| Llidiart Annie | Hamlet |
| Trevor Uchaf | Hamlet |
| Pentre | Settlement |
Position of LL20 relative to nearby towns. Distance is measured from the centre of LL20 to the centre of the town.
Position of LL20 relative to nearby cities. Distance is measured from the centre of LL20 to the centre of the city.