| Postcode | CF45 4RF | 
|---|---|
| Post Town | Mountain Ash | 
| Nearest station | Abercynon (0 km) | 
| Bus stops | Station Road (SW) Top of the Hill (SE) Abercynon Railway Station  (N) Top of the Hill (NW) Imperial (NW) Ynysmeurig (SW) | 
| Known addresses | 
                          No addresses found
                       | 
| Businesses | 
                        No businesses found
                     | 
| Latitude | 51.64558 | |
|---|---|---|
| Longitude | -3.32811 | |
| Easting | 308202 | |
| Northing | 194923 | |
| Grid reference | ST082949 | |
| UTM reference | 30U 477297 5721670 | |
| what3words | lurching.scoots.cure | |
| FixPhrase | crinkle lung smartly unpinned | |
| Plus code | 9C3RJMWC+6Q | |
| Altitude | 85 metres (277 feet) | |
| Sunrise (today) | 7:06 | |
| Sunset (today) | 16:49 | |
| Distance away | ||
| Distance to sea | 22.5 KMs (14 miles) | 
| Parish | Abercynon | W04000678 | 
|---|---|---|
| Ward | Abercynon | W05001072 | 
| 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 | 
|---|---|
| Date usage ended | March 2013 | 
| 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 | 
| Index of Multiple Deprivation (2019) | Most deprivedLeast deprived | |
|---|---|---|
| Average household income (2020) | Lowest (£22,200)
                        Highest (£108,100)
                       | |
| Rural/urban (2021) | Urban: Nearer to a major town or city | |
| Rural/urban (2011) | Rural town and fringe | |
| Built up area (2024) | Abercynon | W45001111 | 
| Census output area (2021) | W00006034 | |
| Census output area (2011) | 8C1 | |
| Lower layer super output area (2021) | Rhondda Cynon Taf 012C | W01001145 | 
| Lower layer super output area (2011) | Rhondda Cynon Taf 012C | W01001145 | 
| Middle layer super output area (2021) | Abercynon | W02000263 | 
| Middle layer super output area (2011) | Abercynon | W02000263 | 
| Travel to work area | Merthyr Tydfil | W22000029 | 
| Average property price in Cardiff | £221,509 | 
|---|---|
| Annual change | 2.2% |