| Postcode | CH8 9AU | 
|---|---|
| Post Town | Holywell | 
| Nearest station | Prestatyn (8 km) | 
| Bus stops | 
                       Tre-Mostyn (SW) 
Plas-ucha-bach (SE) 
Plas-ucha-bach (NW) 
                     | 
                  
| Known addresses | 
                       
                          No addresses found
                       
                     | 
                  
| Businesses | 
                     
                        No businesses found
                     
                   | 
                
| Latitude | 53.307251 | |
|---|---|---|
| Longitude | -3.292107 | |
| Easting | 314000 | |
| Northing | 379702 | |
| Grid reference | SJ139797 | |
| UTM reference | 30U 480536 5906490 | |
| what3words | rags.chucked.hiding | |
| FixPhrase | crowbar lurch scoff unblended | |
| Plus code | 9C5R8P45+W5 | |
| Altitude | 112 metres (367 feet) | |
| Sunrise (today) | 7:18 | |
| Sunset (today) | 16:37 | |
| Distance away | ||
| Distance to sea | 1.9 KMs (1.2 miles) | 
| Parish | Mostyn | W04000198 | 
|---|---|---|
| Ward | Mostyn | W05001607 | 
| Unitary Authority | Flintshire | W06000005 | 
| County | Clwyd | W11000001 | 
| Constituency (2024) | Clwyd East | W07000094 | 
| MP | Becky Gittins | Labour | 
| Police force | North Wales | |
| NUTS/ITL 3 | Flintshire and Wrexham | |
| NUTS/ITL 2 | North Wales | |
| NUTS/ITL 1 | Wales | |
| Country | Wales | W92000004 | 
| Date introduced | January 1980 | 
|---|---|
| Date usage ended | December 1983 | 
| Last updated | September 2025 | 
| User type | Small (addresses receive less than 25 items of mail per day) | 
| Quality | Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference | 
| 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 | |
| Census output area (2021) | W00001718 | |
| Census output area (2011) | 1C1 | |
| Lower layer super output area (2021) | Flintshire 002B | W01000320 | 
| Lower layer super output area (2011) | Flintshire 002B | W01000320 | 
| Middle layer super output area (2021) | Mostyn & Holway | W02000059 | 
| Middle layer super output area (2011) | Mostyn & Holway | W02000059 | 
| Travel to work area | Rhyl | W22000031 | 
| Average property price in Chester | £229,281 | 
|---|---|
| Annual change | 2.5% |