Sectors in LL20
| Sector | Main place | Postcodes |
|---|---|---|
| LL20 7 | Glyn Ceiriog | 215 |
| LL20 8 | Llangollen | 163 |
| LL20 9 | Llangollen | 6 |
Places covered by LL20
- Llangollen Denbighshire · 148
- Glyn Ceiriog Wrexham · 52
- Froncysyllte Wrexham · 33
- Trevor Wrexham · 24
- Garth Wrexham · 12
- Pontfadog Wrexham · 10
- Llwynmawr Wrexham · 6
- Garth Trevor Wrexham · 5
- Pandy Wrexham · 5
- Berwyn Denbighshire · 4
- Llanarmon Dyffryn Ceiriog Wrexham · 4
- Llidiart Annie Denbighshire · 3
- Pentre-dwfr Denbighshire · 3
- Tregeiriog Wrexham · 3
- Rhewl Denbighshire · 2
- Geufron Denbighshire · 1
- Llandynan Denbighshire · 1
- Pentrefelin Denbighshire · 1
- Trevor Uchaf Denbighshire · 1