| Postcode | SA15 5BD | 
|---|---|
| Post Town | Llanelli | 
| Nearest station | Llandybie (11 km) | 
| Bus stops | Post Office (NE) | 
| Roads in this postcode | |
| Number of UPRNs | 56 View | 
| Known addresses | Anfield, Mynyddcerrig Arwel, Mynyddcerrig Cae Glas, Mynyddcerrig Cwmhyfryd, Mynyddcerrig Dan Y Dderwen, Mynyddcerrig Derwen Deg, Mynyddcerrig Foxleigh, Mynyddcerrig Gelli Aur, Mynyddcerrig Gerynant, Mynyddcerrig Hafan Dawel, Mynyddcerrig Hazel Bank, Mynyddcerrig Hollies, Mynyddcerrig Hollycharm, Mynyddcerrig Llwyncelyn Uchaf, Mynyddcerrig Llwyncelyn, Mynyddcerrig Maes Yr Haf, Mynyddcerrig Nanthir, Mynyddcerrig Nyth Y Dryw, Mynyddcerrig Pantawel, Mynyddcerrig Rowan, Mynyddcerrig Springfield, Mynyddcerrig The Highlands, Mynyddcerrig Tinkers Well, Mynyddcerrig Treetops, Mynyddcerrig 1 Maesteg Villas, Mynyddcerrig 2 Maesteg Villas, Mynyddcerrig 3 Maesteg Villas, Mynyddcerrig 4 Maesteg Villas, Mynyddcerrig | 
| Main property type | Detached | 
| Businesses | 
| Latitude | 51.801184 | |
|---|---|---|
| Longitude | -4.16068 | |
| Easting | 251113 | |
| Northing | 213602 | |
| Grid reference | SN511136 | |
| UTM reference | 30U 419967 5739562 | |
| what3words | fronted.breeze.sideboard | |
| FixPhrase | crisped lumping sasquatch trunks | |
| Plus code | 9C3QRR2Q+FP | |
| Altitude | 132 metres (432 feet) | |
| Sunrise (today) | 7:08 | |
| Sunset (today) | 16:54 | |
| Distance away | ||
| Distance to sea | 11.1 KMs (6.9 miles) | 
| Parish | Llanddarog | W04000510 | 
|---|---|---|
| Ward | Llanddarog | W05001201 | 
| Unitary Authority | Carmarthenshire | W06000010 | 
| County | Dyfed | W11000002 | 
| Constituency (2024) | Caerfyrddin | W07000087 | 
| MP | Ms Ann Davies | Plaid Cymru | 
| Police force | Dyfed-Powys | |
| Water company | Dwr Cymru Welsh Water | |
| NUTS/ITL 3 | South West Wales | |
| NUTS/ITL 2 | Mid and South West 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) | 107 | |
|---|---|---|
| Households (2011) | 44 | |
| Index of Multiple Deprivation (2019) | Most deprivedLeast deprived | |
| Average household income (2020) | Lowest (£22,200)
                        Highest (£108,100)
                       | |
| Rural/urban (2021) | Smaller rural: Further from a major town or city | |
| Rural/urban (2011) | Rural village | |
| Census output area (2021) | W00003635 | |
| Census output area (2011) | 1A2 | |
| Lower layer super output area (2021) | Carmarthenshire 012A | W01000675 | 
| Lower layer super output area (2011) | Carmarthenshire 012A | W01000675 | 
| Middle layer super output area (2021) | Llanddarog, Llangyndeyrn & Ferryside | W02000153 | 
| Middle layer super output area (2011) | Llanddarog, Llangyndeyrn & Ferryside | W02000153 | 
| Travel to work area | Llanelli | W22000028 | 
| Average property price in Swansea | £199,131 | 
|---|---|
| Annual change | 2.4% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| Cwmhyfryd, Mynyddcerrig | Detached (freehold) | Mar 2025 | £271,000 | 
| Foxleigh, Mynyddcerrig | Detached (freehold) | Jun 2024 | £320,000 | 
| Hollycharm, Mynyddcerrig | Detached (freehold) | Mar 2024 | £330,000 | 
| Detached (freehold) | Apr 2021 | £230,000 | |
| Detached (freehold) | Aug 2019 | £240,000 | |
| New build detached (freehold) | Oct 2004 | £155,000 | |
| 3 Maesteg Villas, Mynyddcerrig | Terraced (freehold) | Dec 2022 | £88,000 | 
| Terraced (freehold) | Sep 2018 | £124,000 | |
| Terraced (freehold) | Jul 1996 | £25,000 | |
| Terraced (freehold) | Jul 1996 | £25,000 | |
| Dan Y Dderwen, Mynyddcerrig | Semi-detached (freehold) | Jan 2021 | £180,000 | 
| Nanthir, Mynyddcerrig | Detached (freehold) | Jan 2021 | £246,500 | 
| Detached (freehold) | May 2003 | £147,500 | |
| Llwyncelyn Uchaf, Mynyddcerrig | Other (freehold) | Oct 2020 | £375,000 | 
| Other (freehold) | Jun 2018 | £275,000 | |
| Hazel Bank, Mynyddcerrig | Detached (freehold) | Oct 2019 | £286,000 | 
| Detached (freehold) | Jul 2011 | £215,000 | |
| Springfield, Mynyddcerrig | Detached (freehold) | Oct 2018 | £235,000 | 
| Detached (freehold) | Dec 2015 | £215,000 | |
| The Highlands, Mynyddcerrig | Detached (freehold) | Sep 2018 | £185,000 | 
| Detached (freehold) | Aug 2013 | £216,000 | |
| Detached (freehold) | Dec 2001 | £90,000 |