| Postcode | LL57 4AR | 
|---|---|
| Post Town | Bangor | 
| Nearest station | Bangor (Gwynedd) (5 km) | 
| Bus stops | Erw Faen (NE) Bro Syr Ifor North (NE) Bro Syr Ifor (SW) Pant yr Ardd (SE) Pant yr Ardd (NW) Railway Cottage (S) | 
| Roads in this postcode | |
| Number of UPRNs | 5 View | 
| Known addresses | Carwyn, Tregarth Hafod, Tregarth Tan Rhiw Uchaf, Tregarth Tanrhiw Farm, Tregarth Tyddyn Tegai, Tregarth | 
| Main property type | Detached | 
| Businesses | 
| Latitude | 53.19224 | |
|---|---|---|
| Longitude | -4.089901 | |
| Easting | 260472 | |
| Northing | 368168 | |
| Grid reference | SH604681 | |
| UTM reference | 30U 427182 5894210 | |
| what3words | assembles.enlarge.delay | |
| FixPhrase | crouch lumpish suggest trade | |
| Plus code | 9C5Q5WR6+V2 | |
| Altitude | 102 metres (335 feet) | |
| Sunrise (today) | 7:13 | |
| Sunset (today) | 16:48 | |
| Distance away | ||
| Distance to sea | 5 KMs (3.1 miles) | 
| Parish | Llandygai | W04000073 | 
|---|---|---|
| Ward | Tre-garth a Mynydd Llandygái | W05001563 | 
| Unitary Authority | Gwynedd | W06000002 | 
| County | Gwynedd | W11000004 | 
| Constituency (2024) | Bangor Aberconwy | W07000083 | 
| MP | Claire Hughes | Labour | 
| 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) | 12 | |
|---|---|---|
| Households (2011) | 4 | |
| 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 | |
| Built up area (2024) | Tregarth | W45000708 | 
| Census output area (2021) | W00000596 | |
| Census output area (2011) | 5A1 | |
| Lower layer super output area (2021) | Gwynedd 003E | W01000115 | 
| Lower layer super output area (2011) | Gwynedd 003E | W01000115 | 
| Middle layer super output area (2021) | Bethesda | W02000012 | 
| Middle layer super output area (2011) | Bethesda | W02000012 | 
| Travel to work area | Bangor and Holyhead | W22000022 | 
| Average property price in Llandudno | £205,971 | 
|---|---|
| Annual change | 1.5% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| Hafod, Tregarth | Detached (freehold) | May 2024 | £184,000 | 
| Detached (freehold) | Dec 2014 | £86,000 | |
| Detached (freehold) | Jan 2007 | £129,000 | |
| Detached (freehold) | Apr 1996 | £27,000 | |
| Tan Rhiw Uchaf, Tregarth | Detached (freehold) | Oct 2023 | £174,000 | 
| Detached (freehold) | Jul 2020 | £118,000 | |
| Detached (freehold) | Oct 2000 | £33,000 | |
| Tanrhiw Farm, Tregarth | Detached (freehold) | Apr 2019 | £150,000 | 
| Detached (freehold) | Apr 2002 | £87,000 | |
| Detached (freehold) | Jul 1998 | £43,500 | |
| Tyddyn Tegai, Tregarth | Detached (freehold) | Mar 2019 | £188,000 | 
| Detached (freehold) | Jun 2014 | £178,000 | |
| Detached (freehold) | Jun 2003 | £75,000 | |
| Carwyn, Tregarth | Detached (freehold) | May 2013 | £187,500 |