| Postcode | LL55 2HT | 
|---|---|
| Post Town | Caernarfon | 
| Nearest station | Llanfairpwll (10 km) | 
| Bus stops | Bro Helen (N) Roman Fort (NW) Rhes Gwstenin (NE) Llys yr Eifl (SW) Caernarfon Llys Tryfan (N) Eagle Hotel (N) | 
| Roads in this postcode | |
| Number of UPRNs | 53 View | 
| Known addresses | 2 Marcus Street, Caernarfon 3 Marcus Street, Caernarfon 4 Marcus Street, Caernarfon 5 Marcus Street, Caernarfon 7 Marcus Street, Caernarfon 8 Marcus Street, Caernarfon 11 Marcus Street, Caernarfon 13 Marcus Street, Caernarfon 15 Marcus Street, Caernarfon 17 Marcus Street, Caernarfon 18 Marcus Street, Caernarfon 19 Marcus Street, Caernarfon 20 Marcus Street, Caernarfon 21 Marcus Street, Caernarfon 23 Marcus Street, Caernarfon 24 Marcus Street, Caernarfon 26 Marcus Street, Caernarfon 27 Marcus Street, Caernarfon 29 Marcus Street, Caernarfon 31 Marcus Street, Caernarfon 34 Marcus Street, Caernarfon 35 Marcus Street, Caernarfon 36 Marcus Street, Caernarfon 37 Marcus Street, Caernarfon 39 Marcus Street, Caernarfon 40 Marcus Street, Caernarfon 41 Marcus Street, Caernarfon 43 Marcus Street, Caernarfon 44 Marcus Street, Caernarfon 47 Marcus Street, Caernarfon | 
| Main property type | Terraced | 
| Businesses | 
| Latitude | 53.135697 | |
|---|---|---|
| Longitude | -4.268727 | |
| Easting | 248327 | |
| Northing | 362243 | |
| Grid reference | SH483622 | |
| UTM reference | 30U 415124 5888117 | |
| what3words | like.called.going | |
| FixPhrase | crouch lumpiness sixtieth unthread | |
| Plus code | 9C5Q4PPJ+7G | |
| Altitude | 29 metres (95 feet) | |
| Sunrise (today) | 7:14 | |
| Sunset (today) | 16:49 | |
| Distance away | ||
| Distance to sea | 1.5 KMs (0.9 miles) | 
| Parish | Caernarfon | W04000056 | 
|---|---|---|
| Ward | Canol Tref Caernarfon | W05001519 | 
| 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) | 113 | |
|---|---|---|
| Households (2011) | 44 | |
| Index of Multiple Deprivation (2019) | Most deprivedLeast deprived | |
| Average household income (2020) | Lowest (£22,200)
                        Highest (£108,100)
                       | |
| Rural/urban (2021) | Urban: Further from a major town or city | |
| Rural/urban (2011) | Rural town and fringe | |
| Built up area (2024) | Caernarfon | W45000738 | 
| Census output area (2021) | W00000568 | |
| Census output area (2011) | 8A1 | |
| Lower layer super output area (2021) | Gwynedd 007C | W01000111 | 
| Lower layer super output area (2011) | Gwynedd 007C | W01000111 | 
| Middle layer super output area (2021) | Caernarfon West & Waunfawr | W02000016 | 
| Middle layer super output area (2011) | Caernarfon West & Waunfawr | W02000016 | 
| Travel to work area | Bangor and Holyhead | W22000022 | 
| Average property price in Llandudno | £205,971 | 
|---|---|
| Annual change | 1.5% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 47 Marcus Street, Caernarfon | Terraced (freehold) | Mar 2025 | £210,000 | 
| Terraced (freehold) | Oct 2021 | £197,000 | |
| Terraced (freehold) | Dec 2006 | £141,000 | |
| Terraced (freehold) | Oct 2002 | £70,000 | |
| Terraced (freehold) | Feb 1998 | £19,250 | |
| 4 Marcus Street, Caernarfon | Terraced (freehold) | Oct 2022 | £152,000 | 
| Terraced (freehold) | Sep 2018 | £88,000 | |
| Terraced (freehold) | Dec 2009 | £103,580 | |
| 18 Marcus Street, Caernarfon | Terraced (freehold) | Jul 2022 | £145,000 | 
| Terraced (freehold) | Jul 2004 | £91,500 | |
| 20 Marcus Street, Caernarfon | Terraced (freehold) | Jul 2022 | £160,000 | 
| Terraced (freehold) | Aug 2000 | £41,300 | |
| 41 Marcus Street, Caernarfon | Terraced (freehold) | Apr 2022 | £115,000 | 
| 7 Marcus Street, Caernarfon | Terraced (freehold) | Dec 2021 | £149,000 | 
| Terraced (freehold) | Dec 2016 | £107,500 | |
| Terraced (freehold) | Dec 2005 | £106,500 | |
| Terraced (freehold) | May 2003 | £64,950 | |
| Terraced (freehold) | Dec 2002 | £47,999 | |
| Terraced (freehold) | Oct 1998 | £36,000 | |
| 19 Marcus Street, Caernarfon | Terraced (freehold) | Dec 2021 | £135,000 | 
| Terraced (freehold) | Jun 2007 | £120,000 | |
| Terraced (freehold) | May 2000 | £34,000 | |
| 29 Marcus Street, Caernarfon | Terraced (freehold) | Aug 2021 | £169,500 | 
| Terraced (freehold) | Sep 2018 | £84,000 | |
| 3 Marcus Street, Caernarfon | Terraced (freehold) | Mar 2021 | £116,000 | 
| Terraced (freehold) | Jun 1998 | £35,000 | |
| 39 Marcus Street, Caernarfon | Terraced (freehold) | May 2018 | £121,000 | 
| Terraced (freehold) | May 2008 | £92,000 |