| Postcode | LL65 4LY | 
|---|---|
| Post Town | Holyhead | 
| Nearest station | Holyhead (11 km) | 
| Bus stops | 
                       No nearby bus stops 
                     | 
                  
| Number of UPRNs | 17 View | 
| Known addresses | 
                       Rhos Y Pant, Llanfairynghornwy 
                            Ty Newydd, Llanfairynghornwy 
                            Tyddyn Lawrence, Llanfairynghornwy 
                            Waen Lydan, Llanfairynghornwy 
                       | 
                  
| Main property type | Detached | 
| Businesses | 
| Latitude | 53.392729 | |
|---|---|---|
| Longitude | -4.541491 | |
| Easting | 231100 | |
| Northing | 391443 | |
| Grid reference | SH310914 | |
| UTM reference | 30U 397494 5917066 | |
| what3words | grins.layers.overlaid | |
| FixPhrase | crowbar lumber suitcase upright | |
| Plus code | 9C5Q9FV5+3C | |
| Altitude | 67 metres (218 feet) | |
| Sunrise (today) | 7:23 | |
| Sunset (today) | 16:42 | |
| Distance away | ||
| Distance to sea | 1.8 KMs (1.1 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) | 16 | |
|---|---|---|
| Households (2011) | 7 | |
| 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 | 
|---|---|---|---|
| Rhos Y Pant, Llanfairynghornwy | Detached (freehold) | Sep 2021 | £455,000 | 
| Detached (freehold) | Sep 2012 | £150,000 | |
| Ty Newydd, Llanfairynghornwy | Detached (freehold) | Sep 2014 | £185,000 | 
| Tyddyn Lawrence, Llanfairynghornwy | Detached (freehold) | Nov 2010 | £217,000 | 
| Waen Lydan, Llanfairynghornwy | Detached (freehold) | Jul 2002 | £125,000 |