| Postcode | CF45 4RN | 
|---|---|
| Post Town | Mountain Ash | 
| Nearest station | Abercynon (0 km) | 
| Bus stops | Ynysmeurig (SW) Post Office (N) Ynysmeurig (NE) Clock (SE) Abercynon Railway Station  (N) Station Road (SW) | 
| Roads in this postcode | |
| Number of UPRNs | 20 View | 
| Known addresses | 1 Upper Gertrude Street, Abercynon 2 Upper Gertrude Street, Abercynon 3 Upper Gertrude Street, Abercynon 4 Upper Gertrude Street, Abercynon 5 Upper Gertrude Street, Abercynon 7 Upper Gertrude Street, Abercynon 8 Upper Gertrude Street, Abercynon 9 Upper Gertrude Street, Abercynon 10 Upper Gertrude Street, Abercynon 13 Upper Gertrude Street, Abercynon | 
| Main property type | Terraced | 
| Businesses | 
| Latitude | 51.644989 | |
|---|---|---|
| Longitude | -3.330261 | |
| Easting | 308052 | |
| Northing | 194859 | |
| Grid reference | ST080948 | |
| UTM reference | 30U 477148 5721605 | |
| what3words | harnessed.albums.standard | |
| FixPhrase | crinkle lung small theater | |
| Plus code | 9C3RJMV9+XV | |
| Altitude | 90 metres (294 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 | 
|---|---|
| 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) | 30 | |
|---|---|---|
| Households (2011) | 12 | |
| 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) | W00006035 | |
| Census output area (2011) | 6B2 | |
| Lower layer super output area (2021) | Rhondda Cynon Taf 012A | W01001143 | 
| Lower layer super output area (2011) | Rhondda Cynon Taf 012A | W01001143 | 
| 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% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 8 Upper Gertrude Street, Abercynon | Terraced (freehold) | Jul 2020 | £83,000 | 
| Terraced (freehold) | Mar 2012 | £80,000 | |
| 4 Upper Gertrude Street, Abercynon | Terraced (freehold) | May 2019 | £65,000 | 
| 3 Upper Gertrude Street, Abercynon | Terraced (freehold) | Dec 2015 | £65,000 | 
| Terraced (freehold) | Jul 2007 | £33,000 | |
| Terraced (freehold) | Sep 2001 | £22,500 | |
| Terraced (freehold) | Oct 1999 | £30,000 | |
| 7 Upper Gertrude Street, Abercynon | Terraced (freehold) | Apr 2015 | £87,000 | 
| Terraced (freehold) | Jul 2004 | £68,500 | |
| 2 Upper Gertrude Street, Abercynon | Terraced (freehold) | Jun 2011 | £78,500 | 
| Terraced (freehold) | Apr 2010 | £77,000 | |
| Terraced (freehold) | Sep 2009 | £85,500 | |
| Terraced (freehold) | Apr 2003 | £31,000 | |
| 9 Upper Gertrude Street, Abercynon | Terraced (freehold) | Nov 2005 | £83,000 | 
| Terraced (freehold) | Aug 2001 | £41,000 | |
| Terraced (freehold) | Apr 2000 | £34,000 | |
| Terraced (freehold) | May 1999 | £13,000 | |
| 13 Upper Gertrude Street, Abercynon | Detached (freehold) | Dec 2001 | £65,000 | 
| 10 Upper Gertrude Street, Abercynon | Terraced (freehold) | Nov 2001 | £40,000 | 
| 1 Upper Gertrude Street, Abercynon | Terraced (freehold) | May 1999 | £27,000 | 
| 5 Upper Gertrude Street, Abercynon | Terraced (freehold) | Jun 1996 | £10,995 |