This file contains the National Statistics Postcode Lookup (NSPL) for the United Kingdom as at May 2022 in Comma Separated Variable (CSV) and ASCII text (TXT) formats. To download the zip file click the Download button. The NSPL relates both current and terminated postcodes to a range of current statutory geographies via ‘best-fit’ allocation from the 2011 Census Output Areas (national parks and Workplace Zones are exempt from ‘best-fit’ and use ‘exact-fit’ allocations). It supports the production of area based statistics from postcoded data. The NSPL is produced by ONS Geography, who provide geographic support to the Office for National Statistics (ONS) and geographic services used by other organisations. The NSPL is issued quarterly. (File size - 196 MB).

This is the ONS Postcode Directory (ONSPD) for the United Kingdom as at February 2024 in Comma Separated Variable (CSV) and ASCII text (TXT) formats. This file contains the multi CSVs so that postcode areas can be opened in MS Excel. To download the zip file click the Download button. The ONSPD relates both current and terminated postcodes in the United Kingdom to a range of current statutory administrative, electoral, health and other area geographies. It also links postcodes to pre-2002 health areas, 1991 Census enumeration districts for England and Wales, 2001 Census Output Areas (OA) and Super Output Areas (SOA) for England and Wales, 2001 Census OAs and SOAs for Northern Ireland and 2001 Census OAs and Data Zones (DZ) for Scotland. It now contains 2021 Census OAs and SOAs for England, Wales and Northern Ireland. It helps support the production of area-based statistics from postcoded data. The ONSPD is produced by ONS Geography, who provide geographic support to the Office for National Statistics (ONS) and geographic services used by other organisations. The ONSPD is issued quarterly. (File size - 231 MB) Please note that this product contains Royal Mail, Gridlink, LPS (Northern Ireland), Ordnance Survey and ONS Intellectual Property Rights.

This dataset contains the National Statistics Postcode Lookup (NSPL) for the United Kingdom. The NSPL relates current postcodes to a range of current statutory administrative, electoral, health and other statistical geographies via ‘best-fit’ allocation from the 2011 Census output areas. It supports the production of area based statistics from postcoded data. The NSPL is produced by ONS Geography, which provides geographic support to the Office for National Statistics (ONS) and geographic services used by other organisations.

This file contains the National Statistics Postcode Lookup (NSPL) for the United Kingdom as at November 2025 in Comma Separated Variable (CSV) and ASCII text (TXT) formats. To download the zip file click the Download button. The NSPL relates both current and terminated postcodes to a range of current statutory geographies via ‘best-fit’ allocation from the 2021 Census Output Areas (national parks and Workplace Zones are exempt from ‘best-fit’ and use ‘exact-fit’ allocations) for England, Wales, Scotland and Northern Ireland. It supports the production of area-based statistics from postcoded data. The NSPL is produced by ONS Geography, who provide geographic support to the Office for National Statistics (ONS) and geographic services used by other organisations. The NSPL is issued quarterly. (File size - 178 MB).

This file contains the centroids of the latest (February 2020) National Statistics Postcode Lookup (NSPL) for the United Kingdom.

This User Guide contains information about the NSPL including: directory content; data currency; the methodology for assigning areas to postcodes; data formats; data quality and limitations and details of recent changes that have impacted on the data. Various annexes and tables provide more detailed supporting information. (File Size - 490 KB)

N.B. PLEASE READ THE USER GUIDE AND THE README.TXT FILEThis file contains the National Statistics Postcode Lookup (NSPL) for the United Kingdom as at February 2018 in Comma Separated Variable (CSV) and ASCII text (TXT) formats. To download the zip file click the Download button. The NSPL relates both current and terminated postcodes to a range of current statutory geographies via ‘best-fit’ allocation from the 2011 Census Output Areas (national parks and Workplace Zones are exempt from ‘best-fit’ and use ‘exact-fit’ allocations). It supports the production of area based statistics from postcoded data. The NSPL is produced by ONS Geography, who provide geographic support to the Office for National Statistics (ONS) and geographic services used by other organisations. The NSPL is issued quarterly. (File size - 375 MB). Please note that this product contains Royal Mail, Gridlink, LPS (Northern Ireland), Ordnance Survey and ONS Intellectual Property Rights.

This User Guide contains information about the NSPL including: directory content; data currency; the methodology for assigning areas to postcodes; data formats; data quality and limitations and details of recent changes that have impacted on the data. Various annexes and tables provide more detailed supporting information. The download includes PDF and ODT versions of the user guide. (File size - 608 KB)

Please note that this product contains Royal Mail, Gridlink, LPS (Northern Ireland), Ordnance Survey and ONS Intellectual Property Rights.

This User Guide contains information about the NSPL including: directory content; data currency; the methodology for assigning areas to postcodes; data formats; data quality and limitations and details of recent changes that have impacted on the data. Various annexes and tables provide more detailed supporting information. The download includes PDF and ODT versions of the user guide. (File size - 626 KB)

Click on the title for more details and to download the file. (File Size - 173 MB)

This User Guide contains information about the NSPL including: directory content; data currency; the methodology for assigning areas to postcodes; data formats; data quality and limitations and details of recent changes that have impacted on the data. Various annexes and tables provide more detailed supporting information. The download includes PDF and ODT versions of the user guide. (File size - 613 KB)

Den här filen innehåller National Statistics Postcode Lookup (NSPL) för Storbritannien per februari 2024 i formaten Comma Separated Variable (CSV) och ASCII text (TXT). För att ladda ner zip-filen klickar du på knappen Ladda ner. NSPL hänför både nuvarande och avslutade postnummer till en rad nuvarande lagstadgade geografiska områden via ”bäst lämpade” tilldelning från 2021 års folkräkningsproduktionsområden (nationalparker och arbetsplatszoner är undantagna från ”bäst lämpade” och använder ”exakt lämpade” tilldelningar) för England, Wales och Nordirland. Skottland har 2011 års folkräkningsutfallsområden

Det stöder produktionen av arealbaserad statistik från postkodade data. NSPL produceras av ONS Geography, som ger geografiskt stöd till Office for National Statistics (ONS) och geografiska tjänster som används av andra organisationer. NSPL utfärdas kvartalsvis. (Arkivstorlek - 176 MB).

Ce fichier contient le National Statistics Postcode Lookup (NSPL) pour le Royaume-Uni en novembre 2024 aux formats Comma Separated Variable (CSV) et ASCII text (TXT). Pour télécharger le fichier zip cliquez sur le bouton Télécharger. Le NSPL relie les codes postaux actuels et résiliés à une série de zones géographiques légales actuelles au moyen de l’allocation «meilleur ajustement» des zones de sortie du recensement de 2021 (les parcs nationaux et les zones de travail sont exemptés de l’allocation «meilleur ajustement» et utilisent l’allocation «exact ajustement») pour l’Angleterre, le Pays de Galles, l’Écosse et l’Irlande du Nord. Il soutient la production de statistiques par zone à partir de données codées par la poste. Le NSPL est produit par ONS Geography, qui fournit un soutien géographique à l'Office for National Statistics (ONS) et des services géographiques utilisés par d'autres organisations. Le NSPL est émis trimestriellement. (Taille du fichier - 195 Mo).

This User Guide contains information about the NSUL including: directory content; data currency; the methodology for assigning areas to postcodes; data formats; data quality and limitations and details of recent changes that have impacted on the data. Various annexes and tables provide more detailed supporting information. The download includes PDF and ODT versions of the user guide. (File size - 629 KB)

Questa guida per l'utente contiene informazioni sul NSPL, tra cui: contenuto della directory; valuta dei dati; la metodologia per l'assegnazione delle superfici ai codici postali; formati dei dati; qualità dei dati, limitazioni e dettagli delle recenti modifiche che hanno avuto un impatto sui dati. Vari allegati e tabelle forniscono informazioni di supporto più dettagliate. Il download include le versioni PDF e ODT del manuale utente. (Dimensione file - 614 KB) Questa guida per l'utente contiene informazioni sul NSPL, tra cui: contenuto della directory; valuta dei dati; la metodologia per l'assegnazione delle superfici ai codici postali; formati dei dati; qualità dei dati, limitazioni e dettagli delle recenti modifiche che hanno avuto un impatto sui dati. Vari allegati e tabelle forniscono informazioni di supporto più dettagliate. Il download include le versioni PDF e ODT del manuale utente. (Dimensione file - 614 KB)

Comma Separated Variable (CSV). Per scaricare il file zip clicca sul pulsante Download. Il NSPL si riferisce sia ai codici postali attuali che a una serie di aree geografiche statutarie attuali attraverso l'assegnazione "migliore" delle aree di produzione del censimento 2011 (i parchi nazionali e le zone sul luogo di lavoro sono esentati dalle allocazioni "migliori" e utilizzano le assegnazioni "esatto"). Supporta la produzione di statistiche basate sull'area a partire da dati di codice postale. Il NSPL è prodotto da ONS Geography, che fornisce supporto geografico all'Ufficio per le statistiche nazionali (ONS) e servizi geografici utilizzati da altre organizzazioni. Il NSPL è emesso trimestrale. (File size — 196 MB).

This User Guide contains information about the NSPL including: directory content; data currency; the methodology for assigning areas to postcodes; data formats; data quality and limitations and details of recent changes that have impacted on the data. Various annexes and tables provide more detailed supporting information. (File Size - 624 KB)

Context

This dataset takes the Environment Agency's Risk of Flooding from Rivers and Sea, and places English postcodes in their appropriate flood risk area, allowing you to look up flood risk from postcode.

Content

Risk of Flooding from Rivers and Sea consists of geographical areas within England which are at risk of flooding from rivers and sea. Each area is assigned a flood risk within a banding:

• High
• Medium
• Low
• Very low
• None

Open Flood Risk by Postcode takes postcodes as point locations (from Open Postcode Geo) and places the postcode in the appropriate flood risk area. It is important to note that actual properties within a specific postcode may have a slightly different point location and therefore be in a different flood risk area. Generally speaking the point location of a postcode is the point location of the central property in that postcode.

For a full field list and explanations of values see the Open Flood Risk by Postcode documentation.

Acknowledgements

Open Flood Risk by Postcode is derived from two open datasets:

• Risk of Flooding from Rivers and Sea
• Open Postcode Geo

Both of these datasets are licensed under the OGL.

The following attribution statements are required:

• Contains OS data © Crown copyright and database right 2017
• Contains Royal Mail data © Royal Mail copyright and database right 2017
• Contains National Statistics data © Crown copyright and database right 2017
• Contains Environment Agency data licensed under the Open Government Licence v3.0.

The dataset is maintained by GetTheData.

The latest version and full documentation is available here.

Inspiration

Example application:

Lookup or drill down to individual English postcodes to see a map of that postcode and its flood risk, alongside surrounding postcodes and their flood risks:

• Application: Flood Map by Postcode
• Example postcode: RG9 2LP

This User Guide contains information about the NSPL including: directory content; data currency; the methodology for assigning areas to postcodes; data formats; data quality and limitations and details of recent changes that have impacted on the data. Various annexes and tables provide more detailed supporting information. (File Size - 424 KB)* STOP PRESS *

For the new release of the NSPL, there are important field changes. Please read the User Guide for full details. The ‘old’ directories will be included for one release only. From May 2018 only the new layout will be available.