| Postcode | LL52 0SS | 
|---|---|
| Post Town | Criccieth | 
| Nearest station | Criccieth (3 km) | 
| Bus stops | Eglwys (NE) | 
| Roads in this postcode | |
| Number of UPRNs | 8 View | 
| Known addresses | Cysgod Y Gwynt, Llanystumdwy Hafan Llewelyn, Llanystumdwy The Rectory, Llanystumdwy | 
| Main property type | Detached | 
| Businesses | 
                        No businesses found
                     | 
| Latitude | 52.922477 | |
|---|---|---|
| Longitude | -4.275977 | |
| Easting | 247089 | |
| Northing | 338544 | |
| Grid reference | SH470385 | |
| UTM reference | 30U 414217 5864408 | |
| what3words | testy.round.burying | |
| FixPhrase | crop lumpiness sheath unimpeded | |
| Plus code | 9C4QWPCF+XJ | |
| Altitude | 32 metres (106 feet) | |
| Sunrise (today) | 7:13 | |
| Sunset (today) | 16:50 | |
| Distance away | ||
| Distance to sea | 1 KMs (0.6 miles) | 
| Parish | Llanystumdwy | W04000089 | 
|---|---|---|
| Ward | Llanystumdwy | W05001550 | 
| Unitary Authority | Gwynedd | W06000002 | 
| County | Gwynedd | W11000004 | 
| Constituency (2024) | Dwyfor Meirionnydd | W07000096 | 
| MP | Liz Saville Roberts | Plaid Cymru | 
| Police force | North Wales | |
| Water company | Dwr Cymru Welsh Water | |
| NUTS/ITL 3 | Gwynedd | |
| 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) | 14 | |
|---|---|---|
| Households (2011) | 5 | |
| 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 in a sparse setting | |
| Census output area (2021) | W00000458 | |
| Census output area (2011) | 1B2 | |
| Lower layer super output area (2021) | Gwynedd 011D | W01000089 | 
| Lower layer super output area (2011) | Gwynedd 011D | W01000089 | 
| Middle layer super output area (2021) | Cricieth & Llanaelhaearn | W02000020 | 
| Middle layer super output area (2011) | Cricieth & Llanaelhaearn | W02000020 | 
| Travel to work area | Pwllheli and Porthmadog | W22000030 | 
| Average property price in Llandudno | £205,971 | 
|---|---|
| Annual change | 1.5% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| Cysgod Y Gwynt, Llanystumdwy | Detached (freehold) | Jan 2021 | £260,000 | 
| Detached (freehold) | Mar 1997 | £71,500 | |
| The Rectory, Llanystumdwy | Detached (freehold) | Sep 2003 | £255,500 | 
| Hafan Llewelyn, Llanystumdwy | New build detached (freehold) | Dec 1999 | £77,000 |