Penrhyn-coch is located in the county of Dyfed, Wales, four miles east of the town of Aberystwyth, 56 miles west of the major town of Shrewsbury, 75 miles north-west of Cardiff, and 177 miles west of London. Penrhyn-coch was historically in the county of Cardiganshire. Penrhyn-coch falls within the unitary authority of Sir Ceredigion - Ceredigion. It is in the SY23 postcode district.


Penrhyn-coch is in the ceremonial county of Dyfed, the historic county of Cardiganshire, and the administrative county of Sir Ceredigion - Ceredigion.
| Ceremonial County | Dyfed |
|---|---|
| Historic County | Cardiganshire |
| Administrative County | Sir Ceredigion - Ceredigion |
Penrhyn-coch is situated towards the northernmost extremity of Dyfed, and towards the easternmost extremity of Dyfed.

The nearest postcode to the centre of Penrhyn-coch is SY23 3TR.
Penrhyn-coch is situated towards the northernmost extremity of the SY23 postcode district, and roughly centrally between the easternmost and westernmost extremities of the SY23 postcode district.

The centre of Penrhyn-coch is located at position 52.43762° latitude and -3.99889° longitude.
| Latitude | 52.43762° |
|---|---|
| Longitude | -3.99889° |
The centre of Penrhyn-coch is located at the grid reference easting 264217 and northing 284062 within the British National Grid (OSGB36) system.
| Easting | 264217 |
|---|---|
| Northing | 284062 |
Position of Penrhyn-coch relative to nearby towns. Distance is measured from the centre of Penrhyn-coch to the centre of the town.
Position of Penrhyn-coch relative to nearby cities. Distance is measured from the centre of Penrhyn-coch to the centre of the city.