| Country: | Wales |
| Welsh Name: | Post Bach |
| Official Name: | Castle Hill |
| Coordinates: | 52.3522°N -4.0194°W |
| Cardiff Distance Mi: | 70.2 |
| Cardiff Distance Km: | 112.9 |
| London Distance Mi: | 175.8 |
| London Distance Km: | 282.9 |
| Unitary Wales: | Ceredigion |
| Community Wales: | Llanilar |
| Constituency Welsh Assembly: | Ceredigion |
| Constituency Westminster: | Ceredigion Preseli |
| Post Town: | Aberystwyth |
| Postcode District: | SY23 |
| Postcode Area: | SY |
| Os Grid Reference: | SN 6256 7460 |
Castle Hill is an area and country estate in the community of Llanilar, Ceredigion, Wales, which is 70.2 miles (112.9 km) from Cardiff and 175.8 miles (282.9 km) from London. Castle Hill is represented in the Senedd by Elin Jones (Plaid Cymru) and is part of the Ceredigion constituency in the House of Commons.[1] [2]