| Postcode | SA61 1LJ | 
|---|---|
| Post Town | Haverfordwest | 
| Nearest station | Haverfordwest (1 km) | 
| Bus stops | Sycamore Flats (SW) Augustine Way (NE) Haverfordwest Rugby Club (SE) Rugby Club (NW) | 
| Roads in this postcode | |
| Number of UPRNs | 55 View | 
| Known addresses | 15 Heol Derwen, Merlins Bridge 23 Heol Derwen, Merlins Bridge 26 Heol Derwen, Merlins Bridge 28 Heol Derwen, Merlins Bridge 34 Heol Derwen, Merlins Bridge 40 Heol Derwen, Merlins Bridge 44 Heol Derwen, Merlins Bridge 45 Heol Derwen, Merlins Bridge 47 Heol Derwen, Merlins Bridge 48 Heol Derwen, Merlins Bridge 50 Heol Derwen, Merlins Bridge 52 Heol Derwen, Merlins Bridge | 
| Main property type | Terraced | 
| Businesses | 
| Latitude | 51.790882 | |
|---|---|---|
| Longitude | -4.969386 | |
| Easting | 195314 | |
| Northing | 214420 | |
| Grid reference | SM953144 | |
| UTM reference | 30U 364177 5739614 | |
| what3words | longingly.campus.maps | |
| FixPhrase | crinkly ludicrous subtype viewless | |
| Plus code | 9C3QQ2RJ+96 | |
| Altitude | 25 metres (81 feet) | |
| Sunrise (today) | 7:13 | |
| Sunset (today) | 16:55 | |
| Distance away | ||
| Distance to sea | 2.2 KMs (1.4 miles) | 
| Parish | Merlin's Bridge | W04000450 | 
|---|---|---|
| Ward | Merlin's Bridge | W05001461 | 
| Unitary Authority | Pembrokeshire | W06000009 | 
| County | Dyfed | W11000002 | 
| Constituency (2024) | Mid and South Pembrokeshire | W07000100 | 
| MP | Henry Tufnell | Labour | 
| 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) | 120 | |
|---|---|---|
| Households (2011) | 49 | |
| 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 | |
| Built up area (2024) | Merlin's Bridge | W45000954 | 
| Census output area (2021) | W00003139 | |
| Census output area (2011) | 8C2 | |
| Lower layer super output area (2021) | Pembrokeshire 006C | W01000586 | 
| Lower layer super output area (2011) | Pembrokeshire 006C | W01000586 | 
| Middle layer super output area (2021) | Haverfordwest South | W02000131 | 
| Middle layer super output area (2011) | Haverfordwest South | W02000131 | 
| Travel to work area | Haverfordwest and Milford Haven | W22000009 | 
| Average property price in Swansea | £199,131 | 
|---|---|
| Annual change | 2.4% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 15 Heol Derwen, Merlins Bridge | Terraced (freehold) | Sep 2024 | £83,250 | 
| 48 Heol Derwen, Merlins Bridge | Semi-detached (freehold) | Feb 2023 | £90,000 | 
| Semi-detached (freehold) | Mar 1996 | £20,000 | |
| 47 Heol Derwen, Merlins Bridge | Terraced (freehold) | Aug 2021 | £83,000 | 
| Terraced (freehold) | May 2021 | £50,000 | |
| Terraced (freehold) | Nov 1996 | £18,000 | |
| 34 Heol Derwen, Merlins Bridge | Other (freehold) | Apr 2021 | £99,950 | 
| Terraced (freehold) | Aug 2017 | £92,000 | |
| Terraced (freehold) | Jun 2017 | £95,000 | |
| Terraced (freehold) | Aug 2004 | £49,000 | |
| 45 Heol Derwen, Merlins Bridge | Terraced (freehold) | Sep 2018 | £80,000 | 
| 50 Heol Derwen, Merlins Bridge | Terraced (freehold) | Dec 2017 | £80,000 | 
| Terraced (freehold) | Jan 2015 | £50,000 | |
| Terraced (freehold) | Sep 2001 | £20,000 | |
| Terraced (freehold) | Oct 1996 | £16,000 | |
| 40 Heol Derwen, Merlins Bridge | Terraced (freehold) | Apr 2017 | £95,000 | 
| 52 Heol Derwen, Merlins Bridge | Terraced (freehold) | Jul 2015 | £68,000 | 
| 44 Heol Derwen, Merlins Bridge | Terraced (freehold) | Feb 2008 | £109,300 | 
| 26 Heol Derwen, Merlins Bridge | Terraced (freehold) | Nov 2007 | £104,000 |