| Postcode | CF45 3EJ | 
|---|---|
| Post Town | Mountain Ash | 
| Nearest station | Penrhiwceiber (1 km) | 
| Bus stops | Post Office (E) Perthcelyn Stores (N) Perthcelyn Stores (S) | 
| Number of UPRNs | 8 View | 
| Known addresses | 
                          No addresses found
                       | 
| Businesses | 
| Latitude | 51.665704 | |
|---|---|---|
| Longitude | -3.371079 | |
| Easting | 305271 | |
| Northing | 197215 | |
| Grid reference | ST052972 | |
| UTM reference | 30U 474335 5723923 | |
| what3words | darkest.depths.doted | |
| FixPhrase | crinkle lung squiggly uproot | |
| Plus code | 9C3RMJ8H+7H | |
| Altitude | 254 metres (834 feet) | |
| Sunrise (today) | 7:06 | |
| Sunset (today) | 16:49 | |
| Distance away | ||
| Distance to sea | 26.1 KMs (16.2 miles) | 
| Parish | Penrhiwceiber | W04000694 | 
|---|---|---|
| Ward | Penrhiw-ceibr | W05001093 | 
| Unitary Authority | Rhondda Cynon Taf | W06000016 | 
| County | Mid Glamorgan | W11000005 | 
| Constituency (2024) | Pontypridd | W07000106 | 
| MP | Alex Davies-Jones | Labour | 
| Police force | South Wales | |
| Water company | Dwr Cymru Welsh Water | |
| NUTS/ITL 3 | Central Valleys and Bridgend | |
| NUTS/ITL 2 | South East Wales | |
| NUTS/ITL 1 | Wales | |
| Country | Wales | W92000004 | 
| Date introduced | January 1980 | 
|---|---|
| Last updated | September 2025 | 
| User type | Small (addresses receive less than 25 items of mail per day) | 
| Quality | Within the building of the matched address closest to the postcode mean | 
| Population (2011) | 3 | |
|---|---|---|
| Households (2011) | 2 | |
| Index of Multiple Deprivation (2019) | Most deprivedLeast deprived | |
| Average household income (2020) | Lowest (£22,200)
                        Highest (£108,100)
                       | |
| Rural/urban (2021) | Urban: Further from a major town or city | |
| Rural/urban (2011) | Urban city and town | |
| Census output area (2021) | W00006375 | |
| Census output area (2011) | 8D1 | |
| Lower layer super output area (2021) | Rhondda Cynon Taf 008A | W01001209 | 
| Lower layer super output area (2011) | Rhondda Cynon Taf 008A | W01001209 | 
| Middle layer super output area (2021) | Penrhiw-ceibr | W02000259 | 
| Middle layer super output area (2011) | Penrhiw-ceibr | W02000259 | 
| Travel to work area | Merthyr Tydfil | W22000029 | 
| Average property price in Cardiff | £221,509 | 
|---|---|
| Annual change | 2.2% |