Explore HA4 8DY in Hillingdon on an interactive map. See its location and approximate address-derived boundary, then review the exact-postcode facts and wider-area statistics available below. Editable vector files, printed maps and postcode colouring tools are also available. Census 2021 records 17 residents and 6 households at the exact postcode.
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Create a Custom MapCore details from the ONS Postcode Directory. Geography codes identify the official areas containing this postcode.
| Postcode | HA4 8DY |
| Postcode without spaces | HA48DY |
| Status | Active postcode |
| User type | Small user postcode |
| Introduced | January 1980 |
| Directory version | 2026-06 |
| Latitude | 51.5805300 |
| Longitude | -0.4114130 |
| British National Grid | 510,169 E, 188,047 N |
| Country | England |
| Region | London |
| Local authority | Hillingdon |
| Output Area (2021) | E00012146 |
| LSOA (2021) | E01002433 |
| MSOA (2021) | E02000497 |
| Electoral ward | E05013577 |
| Westminster constituency | E14001454 |
The postcode is assigned to these official political geographies. Names and election results will be added when the ElectionMaps datasets are connected.
These Census figures are matched directly to the full postcode, rather than inferred from a wider neighbourhood.
| Residents | 17 |
| Households | 6 |
| Female residents | 8 |
| Male residents | 9 |
| Residents per household | 2.8 |
A detailed vector map covering a 500 metre radius around the postcode.
Deprivation is published for the postcode's containing Lower Layer Super Output Area, a neighbourhood geography covering more than one postcode.
Open schools and active GP practices in the HA4 postcode district, ordered by straight-line distance where coordinates are available.
Academy converter
Hume Way, Ruislip, HA4 8EE
Ages 11–18 · 1,218 pupils of 1,245 capacity
13.1% eligible for free school meals
Community school
Old Hatch Manor, Ruislip, Middlesex, HA4 8QG
Ages 3–11 · 441 pupils of 465 capacity
8.7% eligible for free school meals
B
21 EASTCOTE ROAD, RUISLIP, HA4 8BE
B
33 HIGH STREET, RUISLIP, HA4 7AU
B
118 ELLIOTT AVENUE, RUISLIP, HA4 9LZ
B
116-118 HIGH STREET, RUISLIP, HA4 8LS
Community school
Dawlish Drive, Ruislip Manor, Ruislip, Middlesex, HA4 9SF
Ages 3–11 · 653 pupils of 630 capacity
18.1% eligible for free school meals
B
19 KING EDWARDS ROAD, RUISLIP, HA4 7AE
B
2A WOOD LANE, RUISLIP, HA4 6ER
Community school
Newnham Infant and Nursery School, Newnham Avenue, Eastcote, Ruislip, HA4 9RW
Ages 3–7 · 302 pupils of 270 capacity
7.8% eligible for free school meals
Community school
Newnham Avenue, Ruislip, HA4 9RW
Ages 7–11 · 350 pupils of 360 capacity
9.1% eligible for free school meals
Voluntary aided school
Southcote Rise, Ruislip, HA4 7LW
Ages 2–11 · 236 pupils of 230 capacity
15.7% eligible for free school meals
Police.uk street-level incidents recorded across the postcode's containing LSOA in May 2026.
Hillingdon 004A includes HA4 8DY and other nearby postcodes.
| Crime type | Incidents |
|---|---|
| Anti-social behaviour | 9 |
| Violence and sexual offences | 7 |
| Drugs | 2 |
| Other theft | 2 |
| Public order | 1 |
| Vehicle crime | 1 |
Answers use the geographic scope stated with each dataset above.
HA4 8DY is in Hillingdon, England.
The Census 2021 postcode-level dataset records 17 residents at HA4 8DY. This is an exact postcode count.
The deprivation figures describe the containing Lower Layer Super Output Area, not only the individual postcode.
Vector Maps supplies editable UK postcode area, district and sector map files. For a vector or printed map focused on the full HA4 8DY postcode and its approximate address-derived outline, request a custom map.
Explore other full postcodes in the same postcode sector.