| Postcode | AL5 1HL | 
|---|---|
| Post Town | Harpenden | 
| Nearest station | Harpenden (2 km) | 
| Bus stops | Meadway (SW) Grove Road (NE) Pipers Avenue (E) Paddock Wood (SE) Tiverton Court (SW) Broadstone Road (E) | 
| Roads in this postcode | |
| Number of UPRNs | 4 View | 
| Known addresses | 
                          No addresses found
                       | 
| Businesses | 
                        No businesses found
                     | 
| Latitude | 51.805163 | |
|---|---|---|
| Longitude | -0.33547 | |
| Easting | 514863 | |
| Northing | 213146 | |
| Grid reference | TL148131 | |
| UTM reference | 30U 683698 5742726 | |
| what3words | usage.guides.wonderfully | |
| FixPhrase | crisped magician scarring trial | |
| Plus code | 9C3XRM47+3R | |
| Altitude | 102 metres (333 feet) | |
| Sunrise (today) | 6:55 | |
| Sunset (today) | 16:37 | |
| Distance away | ||
| Distance to sea | 63.8 KMs (39.7 miles) | 
| Parish | Harpenden Town | E04013284 | 
|---|---|---|
| Ward | Harpenden South | E05013954 | 
| Local Authority District | St Albans | E07000240 | 
| County Electoral Division | Harpenden South West | E58000626 | 
| Local Authority | Hertfordshire | E10000015 | 
| County | Hertfordshire | E10000015 | 
| Constituency (2024) | Harpenden and Berkhamsted | E14001268 | 
| MP | Victoria Collins | Liberal Democrat | 
| Police force | Hertfordshire | |
| Water company | Affinity Water | |
| Sewage company | Thames Water | |
| NUTS/ITL 3 | South West Hertfordshire | |
| NUTS/ITL 2 | Bedfordshire and Hertfordshire | |
| NUTS/ITL 1 | East of England | |
| Country | England | E92000001 | 
| 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) | 4 | |
|---|---|---|
| Households (2011) | 3 | |
| Index of Multiple Deprivation (2019) | Most deprivedLeast deprived | |
| Average household income (2020) | Lowest (£22,200)
                        Highest (£108,100)
                       | |
| Rural/urban (2021) | Urban: Nearer to a major town or city | |
| Rural/urban (2011) | Urban city and town | |
| Built up area (2024) | Harpenden | E63011425 | 
| Census output area (2021) | E00120333 | |
| Census output area (2011) | 5B3 | |
| Lower layer super output area (2021) | St Albans 005A | E01023695 | 
| Lower layer super output area (2011) | St Albans 005A | E01023695 | 
| Middle layer super output area (2021) | Harpenden Common | E02004928 | 
| Middle layer super output area (2011) | Harpenden Common | E02004928 | 
| Travel to work area | Luton | E30000237 | 
| Average property price in St Albans | £541,094 | 
|---|---|
| Annual change | -0.5% |