NN1 3BY maps, stats, and open data
NN1 3BY is located in the Castle electoral ward, within the unitary authority of West Northamptonshire and the English Parliamentary constituency of Northampton South. The Sub Integrated Care Board (ICB) Location is NHS Northamptonshire ICB - 78H and the police force is Northamptonshire. This postcode has been in use since February 2018.
NN1 3BY maps


Source: OS Open Zoomstack (Ordnance Survey)
Licence: Open Government Licence (requires attribution)
Attribution: Contains OS data © Crown copyright and database right 2026
Source: Open Postcode GeoLicence: Open Government Licence (requires attribution)
Attribution: Contains OS data © Crown copyright and database right 2026; Contains Royal Mail data © Royal Mail copyright and database right 2026; Source: Office for National Statistics licensed under the Open Government Licence v.3.0
NN1 3BY geodata
| Easting | 475461 |
| Northing | 261311 |
| Latitude | 52.244834 |
| Longitude | -0.896177 |
Where is NN1 3BY?
| Country | England |
| Postcode District | NN1 |
Politics
| Ward | Castle |
|---|
| Constituency | Northampton South |
|---|
Transport
Nearest bus stops to NN1 3BY
| Royal Mail Sorting Office (Barrack Road) | Semilong | 75m |
| Royal Mail Sorting Office (Barrack Road) | Semilong | 92m |
| Marriott Street (Barrack Road) | Semilong | 307m |
| Marriott Street (Barrack Road) | Semilong | 335m |
| Gala Casino (Broad Street) | Northampton | 357m |
Nearest railway stations to NN1 3BY
Broadband
Broadband access in NN1 3BY (2020 data)
| Percentage of properties with Next Generation Access | 100.0% |
| Percentage of properties with Superfast Broadband | 100.0% |
| Percentage of properties with Ultrafast Broadband | 100.0% |
| Percentage of properties with Full Fibre Broadband | 0.0% |
Superfast Broadband is between 30Mbps and 300Mbps
Ultrafast Broadband is > 300Mbps
Broadband speed in NN1 3BY (2019 data)
Download
| Median download speed | 100.0Mbps |
| Average download speed | 132.4Mbps |
| Maximum download speed | 350.00Mbps |
Upload
| Median upload speed | 1.0Mbps |
| Average upload speed | 1.0Mbps |
| Maximum upload speed | 1.00Mbps |
Broadband limitations in NN1 3BY (2020 data)
| Percentage of properties unable to receive 2Mbps | 0.0% |
| Percentage of properties unable to receive 5Mbps | 0.0% |
| Percentage of properties unable to receive 10Mbps | 0.0% |
| Percentage of properties unable to receive 30Mbps | 0.0% |
Deprivation
92% of English postcodes are less deprived than
NN1 3BY:
Food Standards Agency
Three nearest food hygiene ratings to NN1 3BY (metres)
Royal Navy & Marine Assoc
Lorne Road Mini Market
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Nearest post box to NN1 3BY
| | Last Collection | |
|---|
| Location | Mon-Fri | Sat | Distance |
|---|
| Louise Road | 17:30 | 11:30 | 213m |
| Regent Square Post Office | 18:30 | 12:00 | 240m |
| Langham Place | 17:30 | 11:30 | 267m |
NN1 3BY ITL and NN1 3BY LAU
The below table lists the International Territorial Level (ITL) codes (formerly Nomenclature of Territorial Units for Statistics (NUTS) codes) and Local Administrative Units (LAU) codes for NN1 3BY:
| ITL 1 Code | Name |
|---|
| TLF | East Midlands (England) |
| ITL 2 Code | Name |
|---|
| TLF2 | Leicestershire, Rutland and Northamptonshire |
| ITL 3 Code | Name |
|---|
| TLF24 | West Northamptonshire |
| LAU 1 Code | Name |
|---|
| E07000154 | Northampton |
NN1 3BY census areas
The below table lists the Census Output Area (OA), Lower Layer Super Output Area (LSOA), and Middle Layer Super Output Area (MSOA) for NN1 3BY:
| Code | Name |
|---|
| OA | E00138135 | |
|---|
| LSOA | E01027153 | Northampton 021C |
|---|
| MSOA | E02005670 | Northampton 021 |
|---|
Nearest postcodes to NN1 3BY