| Postcode | LL65 4LL | 
|---|---|
| Post Town | Holyhead | 
| Nearest station | Holyhead (12 km) | 
| Bus stops | 
                       Old Post Office (NW) 
                     | 
                  
| Number of UPRNs | 19 View | 
| Known addresses | 
                       Bryn Llawenydd 2 Joint Houses Llanfairynghornwy 
                            Bryn Siriol, Llanfairynghornwy 
                            Fron Hendre, Llanfairynghornwy 
                            Greensleeves, Llanfairynghornwy 
                            Hen Felin, Llanfairynghornwy 
                            Tan Yr Efail, Llanfairynghornwy 
                            Ty Wian, Llanfairynghornwy 
                       | 
                  
| Main property type | Detached | 
| Businesses | 
| Latitude | 53.391341 | |
|---|---|---|
| Longitude | -4.522201 | |
| Easting | 232377 | |
| Northing | 391243 | |
| Grid reference | SH323912 | |
| UTM reference | 30U 398774 5916884 | |
| what3words | rosette.automate.reds | |
| FixPhrase | crowbar lumber suffix unbitten | |
| Plus code | 9C5Q9FRH+G4 | |
| Altitude | 52 metres (169 feet) | |
| Sunrise (today) | 7:23 | |
| Sunset (today) | 16:42 | |
| Distance away | ||
| Distance to sea | 2.3 KMs (1.4 miles) | 
| Parish | Cylch-y-Garn | W04000009 | 
|---|---|---|
| Ward | Talybolion | W05001502 | 
| Unitary Authority | Isle of Anglesey | W06000001 | 
| County | Gwynedd | W11000004 | 
| Constituency (2024) | Ynys Môn | W07000112 | 
| MP | Llinos Medi | Plaid Cymru | 
| Police force | North Wales | |
| Water company | Dwr Cymru Welsh Water | |
| NUTS/ITL 3 | Isle of Anglesey | |
| NUTS/ITL 2 | North 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) | 32 | |
|---|---|---|
| Households (2011) | 12 | |
| 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 hamlet and isolated dwellings in a sparse setting | |
| Census output area (2021) | W00000156 | |
| Census output area (2011) | 1A3 | |
| Lower layer super output area (2021) | Isle of Anglesey 001E | W01000031 | 
| Lower layer super output area (2011) | Isle of Anglesey 001E | W01000031 | 
| Middle layer super output area (2021) | Amlwch & Llannerch-y-medd | W02000001 | 
| Middle layer super output area (2011) | Amlwch & Llannerch-y-medd | W02000001 | 
| Travel to work area | Bangor and Holyhead | W22000022 | 
| Average property price in Llandudno | £206,073 | 
|---|---|
| Annual change | 1.4% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| Greensleeves, Llanfairynghornwy | Detached (freehold) | Apr 2024 | £350,000 | 
| Detached (freehold) | Mar 2020 | £200,000 | |
| Ty Wian, Llanfairynghornwy | Detached (freehold) | May 2019 | £200,000 | 
| Fron Hendre, Llanfairynghornwy | Other (freehold) | Apr 2015 | £160,000 | 
| Tan Yr Efail, Llanfairynghornwy | Detached (freehold) | Jul 2012 | £148,000 | 
| New build detached (freehold) | Dec 2004 | £176,000 | |
| Detached (freehold) | Apr 2004 | £147,000 | |
| Bryn Llawenydd 2 Joint Houses Llanfairynghornwy | Terraced (freehold) | Apr 2009 | £47,000 | 
| Bryn Siriol, Llanfairynghornwy | Semi-detached (freehold) | Apr 2004 | £80,000 | 
| Hen Felin, Llanfairynghornwy | Detached (freehold) | May 1997 | £32,500 |