| Postcode | LL65 2LW | 
|---|---|
| Post Town | Holyhead | 
| Nearest station | Holyhead (2 km) | 
| Bus stops | No nearby bus stops | 
| Roads in this postcode | |
| Number of UPRNs | 14 View | 
| Known addresses | Bryn Ioan, Porthdafarch Nant Yr Gwyllt, Mill Road, Porthdafarch Over Dale, Porthdafarch Penrhyn Owen, Porthdafarch Tref Iago, Mill Road, Porthdafarch Tynewydd, Porthdafarch | 
| Main property type | Detached | 
| Businesses | 
                        No businesses found
                     | 
| Latitude | 53.290607 | |
|---|---|---|
| Longitude | -4.639141 | |
| Easting | 224188 | |
| Northing | 380321 | |
| Grid reference | SH241803 | |
| UTM reference | 30U 390740 5905852 | |
| what3words | attends.winner.fewer | |
| FixPhrase | crouton lullaby subwoofer unopposed | |
| Plus code | 9C5Q79R6+68 | |
| Altitude | 20 metres (67 feet) | |
| Sunrise (today) | 7:16 | |
| Sunset (today) | 16:50 | |
| Distance away | ||
| Distance to sea | 1.2 KMs (0.8 miles) | 
| Parish | Trearddur | W04000874 | 
|---|---|---|
| Ward | Ynys Gybi | W05001505 | 
| 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) | 6 | |
| 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) | W00000201 | |
| Census output area (2011) | 1A1 | |
| Lower layer super output area (2021) | Isle of Anglesey 004D | W01000040 | 
| Lower layer super output area (2011) | Isle of Anglesey 004D | W01000040 | 
| Middle layer super output area (2021) | Llain-goch & Valley | W02000004 | 
| Middle layer super output area (2011) | Llain-goch & Valley | W02000004 | 
| Travel to work area | Bangor and Holyhead | W22000022 | 
| Average property price in Llandudno | £205,971 | 
|---|---|
| Annual change | 1.5% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| Tref Iago, Mill Road, Porthdafarch | Detached (freehold) | Sep 2024 | £380,000 | 
| Nant Yr Gwyllt, Mill Road, Porthdafarch | Other (freehold) | May 2024 | £400,000 | 
| Tynewydd, Porthdafarch | Detached (freehold) | Nov 2013 | £188,000 | 
| Penrhyn Owen, Porthdafarch | Detached (freehold) | Sep 2010 | £80,000 | 
| Over Dale, Porthdafarch | Detached (freehold) | Sep 2003 | £75,000 | 
| Bryn Ioan, Porthdafarch | Detached (freehold) | Jul 1998 | £125,000 |