| Postcode | SY23 1QF | 
|---|---|
| Post Town | Aberystwyth, Llanon, Llanrhystud | 
| Nearest station | Aberystwyth (0 km) | 
| Bus stops | Mill Street (SW) Great Darkgate Street Top (NE) Great Darkgate Street (NE) Cambrian Place (N) Yr Hen Ysgol Gymraeg (SW) Park Avenue (SE) | 
| Roads in this postcode | |
| Number of UPRNs | 11 View | 
| Known addresses | 1 William Street, Aberystwyth 3 William Street, Aberystwyth 4 William Street, Aberystwyth 5 William Street, Aberystwyth 6 William Street, Aberystwyth 7 William Street, Aberystwyth 8 William Street, Aberystwyth | 
| Main property type | Terraced | 
| Businesses | 
                        No businesses found
                     | 
| Latitude | 52.413104 | |
|---|---|---|
| Longitude | -4.08458 | |
| Easting | 258314 | |
| Northing | 281501 | |
| Grid reference | SN583815 | |
| UTM reference | 30U 426231 5807539 | |
| what3words | outdoor.trunk.butchers | |
| FixPhrase | critter lumpish sedate thyself | |
| Plus code | 9C4QCW78+65 | |
| Altitude | 14 metres (45 feet) | |
| Sunrise (today) | 7:11 | |
| Sunset (today) | 16:50 | |
| Distance away | ||
| Distance to sea | 0 KMs (0 miles) | 
| Parish | Aberystwyth | W04000359 | 
|---|---|---|
| Ward | Aberystwyth Morfa a Glais | W05001300 | 
| Unitary Authority | Ceredigion | W06000008 | 
| County | Dyfed | W11000002 | 
| Constituency (2024) | Ceredigion Preseli | W07000093 | 
| MP | Ben Lake | Plaid Cymru | 
| Police force | Dyfed-Powys | |
| Water company | Dwr Cymru Welsh Water | |
| NUTS/ITL 3 | Mid Wales | |
| NUTS/ITL 2 | Mid and South West 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) | 26 | |
|---|---|---|
| Households (2011) | 9 | |
| 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) | Urban city and town in a sparse setting | |
| Built up area (2024) | Aberystwyth | W45000858 | 
| Census output area (2021) | W00002743 | |
| Census output area (2011) | 2A2 | |
| Lower layer super output area (2021) | Ceredigion 002B | W01000513 | 
| Lower layer super output area (2011) | Ceredigion 002B | W01000513 | 
| Middle layer super output area (2021) | Aberystwyth North | W02000117 | 
| Middle layer super output area (2011) | Aberystwyth North | W02000117 | 
| Travel to work area | Aberystwyth | W22000021 | 
| Average property price in Shrewsbury | £264,180 | 
|---|---|
| Annual change | 0.9% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 5 William Street, Aberystwyth | Detached (freehold) | Apr 2024 | £195,000 | 
| Detached (freehold) | Apr 1998 | £60,000 | |
| 8 William Street, Aberystwyth | Terraced (freehold) | Feb 2024 | £195,000 | 
| Terraced (freehold) | Jun 2012 | £158,000 | |
| 3 William Street, Aberystwyth | Terraced (freehold) | Aug 2021 | £160,000 | 
| 6 William Street, Aberystwyth | Terraced (freehold) | Jun 2021 | £178,000 | 
| 7 William Street, Aberystwyth | Terraced (freehold) | Sep 2020 | £165,000 | 
| Terraced (freehold) | Jun 2006 | £165,000 | |
| 4 William Street, Aberystwyth | Terraced (freehold) | Dec 2006 | £190,000 | 
| Terraced (freehold) | Oct 1998 | £67,000 | |
| 1 William Street, Aberystwyth | Detached (freehold) | Dec 2004 | £215,000 |