| Postcode | HA6 9HL | 
|---|---|
| Post Town | Northwood | 
| Nearest station | Northwood Hills (1 km) | 
| Bus stops | Hallowell Road (S) Hallowell Road (N) Northwood Health Centre (W) Northwood Health Centre (E) Emmanuel Church (N) Emmanuel Church (S) | 
| London travel zone | 6 | 
| Known addresses | 
                          No addresses found
                       | 
| Businesses | 
                        No businesses found
                     | 
| Latitude | 51.603661 | |
|---|---|---|
| Longitude | -0.415645 | |
| Easting | 509821 | |
| Northing | 190613 | |
| Grid reference | TQ098906 | |
| UTM reference | 30U 678966 5720121 | |
| what3words | crop.necks.basket | |
| FixPhrase | crinkle magical scale unvocal | |
| Plus code | 9C3XJH3M+FP | |
| Altitude | 68 metres (223 feet) | |
| Sunrise (today) | 6:54 | |
| Sunset (today) | 16:38 | |
| Distance away | ||
| Distance to sea | 59.5 KMs (37 miles) | 
| Parish | Hillingdon, unparished area | E43000207 | 
|---|---|---|
| Ward | Northwood Hills | E05013575 | 
| London Borough | Hillingdon | E09000017 | 
| County | Greater London | E11000009 | 
| Constituency (2024) | Ruislip, Northwood and Pinner | E14001454 | 
| MP | David Simmonds | Conservative | 
| Police force | Metropolitan Police | |
| NUTS/ITL 3 | Harrow and Hillingdon | |
| NUTS/ITL 2 | Outer London - West and North West | |
| NUTS/ITL 1 | London | |
| Country | England | E92000001 | 
| Date introduced | May 2021 | 
|---|---|
| Date usage ended | February 2022 | 
| Last updated | September 2025 | 
| User type | Large (addresses receive more than 25 items of mail per day) | 
| Quality | Within the building of the matched address closest to the postcode mean | 
| 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 major conurbation | |
| Built up area (2024) | Hillingdon | E63012034 | 
| Census output area (2021) | E00012347 | |
| Census output area (2011) | 4C3 | |
| Lower layer super output area (2021) | Hillingdon 002F | E01002485 | 
| Lower layer super output area (2011) | Hillingdon 002F | E01002485 | 
| Middle layer super output area (2021) | Northwood | E02000495 | 
| Middle layer super output area (2011) | Northwood | E02000495 | 
| Travel to work area | Slough and Heathrow | E30000266 | 
| Average property price in Harrow | £533,144 | 
|---|---|
| Annual change | 0.3% |