Find HA1 3JN in Harrow and explore the information recorded for it. The interactive map shows the postcode’s position and an approximate address-derived outline, with exact-postcode facts and wider neighbourhood statistics clearly identified below. Census 2021 records 4 residents and 2 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 | HA1 3JN |
| Postcode without spaces | HA13JN |
| Status | Active postcode |
| User type | Small user postcode |
| Introduced | January 1980 |
| Directory version | 2026-06 |
| Latitude | 51.5669600 |
| Longitude | -0.3409390 |
| British National Grid | 515,086 E, 186,647 N |
| Country | England |
| Region | London |
| Local authority | Harrow |
| Output Area (2021) | E00010691 |
| LSOA (2021) | E01002132 |
| MSOA (2021) | E02000461 |
| Electoral ward | E05013547 |
| Westminster constituency | E14001271 |
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 | 4 |
| Households | 2 |
| Female residents | 2 |
| Male residents | 2 |
| Residents per household | 2.0 |
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 HA1 postcode district, ordered by straight-line distance where coordinates are available.
Further education
Mount Park Avenue, Harrow-on-the-Hill, Middlesex, HA1 3HX
Ages 16–18
Other independent school
South Hill Avenue, Harrow, Middlesex, HA1 3NU
Ages 4–13 · 467 pupils of 500 capacity
B
SUDBURY HILL, HARROW, HA1 3RX
Other independent school
5 High Street, Harrow-on-the-Hill, HA1 3HP
Ages 12–19 · 833 pupils of 837 capacity
B
LANFRANC COURT, GREENFORD ROAD, HARROW, HA1 3QE
Academy converter
Sudbury Hill, Harrow, Middlesex, HA1 3SB
Ages 2–11 · 404 pupils of 420 capacity
5.4% eligible for free school meals
Voluntary aided school
Roxborough Park, Harrow, HA1 3BE
Ages 4–11 · 408 pupils of 420 capacity
7.6% eligible for free school meals
B
COLBECK ROAD, HARROW, HA1 4BS
Other independent school
13 Kenton Road, Harrow, Middlesex, HA1 2BW
Ages 11–17 · 60 pupils of 60 capacity
Free schools alternative provision
73-77 Lowlands Road, Harrow, HA1 3AW
Ages 11–16 · 0 pupils of 100 capacity
0.0% eligible for free school meals
B
NORTHWICK PARK HOSPITAL, WATFORD ROAD, HARROW, HA1 3UJ
B
97 PINNER ROAD, HARROW, HA1 4ET
Companies House records whose registered-office address uses this exact postcode.
Private Limited Company
Incorporated 1 April 2020
68100 - Buying and selling of own real estate
Private Limited Company
Incorporated 15 August 2017
46170 - Agents involved in the sale of food, beverages and tobacco
Private Limited Company
Incorporated 1 November 2013
82990 - Other business support service activities n.e.c.
Private Limited Company
Incorporated 28 October 2013
47770 - Retail sale of watches and jewellery in specialised stores
Private Limited Company
Incorporated 3 December 2004
82990 - Other business support service activities n.e.c.
Private Limited Company
Incorporated 27 March 1996
62020 - Information technology consultancy activities
Private Limited Company
Incorporated 17 May 1995
64999 - Financial intermediation not elsewhere classified
Police.uk street-level incidents recorded across the postcode's containing LSOA in May 2026.
Harrow 029A includes HA1 3JN and other nearby postcodes.
| Crime type | Incidents |
|---|---|
| Anti-social behaviour | 3 |
| Violence and sexual offences | 2 |
| Burglary | 1 |
Answers use the geographic scope stated with each dataset above.
HA1 3JN is in Harrow, England.
The Census 2021 postcode-level dataset records 4 residents at HA1 3JN. 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 HA1 3JN postcode and its approximate address-derived outline, request a custom map.
Explore other full postcodes in the same postcode sector.