This is the ONS Postcode Directory (ONSPD) for the United Kingdom as at February 2025 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 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 also contains 2021 Census OAs and SOAs for England, Wales and Northern Ireland and 2022 Census OAs DZs and Intermediate Zones (IZ) for Scotland. 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 - 234 MB) Please note that this product contains Royal Mail, Gridlink, LPS (Northern Ireland), Ordnance Survey and ONS Intellectual Property Rights.

Open Postcode Geo is a postcode dataset and API optimised for geocoding applications. You can use Open Postcode Geo to geocode a dataset, geocode user input, and therefore build a proximity search.

Data is derived from the ONS (Office for National Statistics) postcode database and is free to use, subject to including attributions to ONS, OS (Ordinance Survey) and Royal Mail.

Information is also provided on a range of topics, including education, health, crime, business, etc.

Postcodes can be entered at area, district, sector, and unit level - see Postcode map for the geographical relationship between these.

Postcode area and district polygons derived from Ordnance Survey Open Data using R and GRASS. Method used was creating voronoi polygons from point postcode data and dissolving boundaries based on postcode area and district attributes.Contains OS data © Crown Copyright and database rightFile descriptions:postcode_polygons.gpkg: geopackage file containing two polygon layers: postcode_area and postcode_district.postcode_aggregator.R: R script to extract area and district from full postcode.postcode_aggregator.sh: GRASS/Bash script to convert point postcode data into polygons.postcode_overview.png: image of polygons available.

A lookup between postcodes and postcode sectors, postcode districts and postcode areas as at March 2021 in England and Wales (File size 5MB).

This dataset is based on the data provided by the Central Bureau voor de Statistiek on different statistical metrics at the postcode level.Only the 4-digit postcodes (PC4) are available, the 5-digit and 6-digit are not freely available from the Dutch authorities.Enhancements- add administrative hierarchy: Gemeenten and Provincie.

Our UK Postcode Database offers comprehensive postal code data for spatial analysis, including postal and administrative areas. This dataset contains accurate and up-to-date information on all administrative divisions, cities, and zip codes, making it an invaluable resource for various applications such as address capture and validation, map and visualization, reporting and business intelligence (BI), master data management, logistics and supply chain management, and sales and marketing. Our location data packages are available in various formats, including CSV, optimized for seamless integration with popular systems like Esri ArcGIS, Snowflake, QGIS, and more. Product features include fully and accurately geocoded data, multi-language support with address names in local and foreign languages, comprehensive city definitions, and the option to combine map data with UNLOCODE and IATA codes, time zones, and daylight saving times. Companies choose our location databases for their enterprise-grade service, reduction in integration time and cost by 30%, and weekly updates to ensure the highest quality.

City map with postcodes boundaries

Postal Areas (POA)

Postal Areas (POAs) are designed to approximate postcode boundaries, as closely as possible. There is not a one-for-one correspondence between Australia Post postcodes and POAs, but these are a good starting point for comparison of Census data with other data collected using postcodes.

Census Postal Areas exclude non-mappable Australia Post postcodes such as:

• post office box postcodes
• some delivery route postcodes, which are also covered by other postcodes (a situation which often occurs in rural areas)
• some postcodes which, because of the application of the 'best fit' principle, do not get a Mesh Block allocated to them.

​

Australian Bureau of Statistics (Jul2021-Jun2026), Data services and APIs, ABS Website, accessed 25 July 2023.

https://www.abs.gov.au/website-privacy-copyright-and-disclaimer#copyright-and-creative-commons

For many countries lat/lng are determined with an algorithm that searches the place names in the main geonames database using administrative divisions and numerical vicinity of the postal codes as factors in the disambiguation of place names. For postal codes and place name for which no corresponding toponym in the main geonames database could be found an average lat/lng of 'neighbouring' postal codes is calculated. Please let us know if you find any errors in the data set. ThanksFor Canada we have only the first letters of the full postal codes (for copyright reasons)For Ireland we have only the first letters of the full postal codes (for copyright reasons)For Malta we have only the first letters of the full postal codes (for copyright reasons)The Argentina data file contains 4-digit postal codes which were replaced with a new system in 1999.For Brazil only major postal codes are available (only the codes ending with -000 and the major code per municipality).For India the lat/lng accuracy is not yet comparable to other countries.Update frequency: 1 month

Postcode Boundaries, as estimated by ABS

Introduction This dataset provides information on where UK Power Networks requires flexibility services. The dataset provides a mapping of postcodes to Flexibility Zones – for all existing and historic day-ahead and long-term flexibility requirements. This enables potential flexibility service providers to quickly understand their eligibility for revenue from flexibility, without sharing any sensitive personal or commercial information. This dataset provides an approximation of eligibility for our flexibility tenders. Please note that even if your asset is within a postcode listed in this dataset, as part of the flexibility procurement process we will need to validate that the individual meter point (MPAN) is electrically connected to the Flexibility Zone. Methodological Approach Postcodes are listed against a Flexibility Zone where at least one meter point within that postcode is electrically connected to the constrained network asset. For large Flexibility Zones, which cover multiple postcodes, this will be a very good indication of eligibility for flexibility services. For smaller Flexibility Zones, particularly those at Low Voltage, a significant proportion of properties within a listed postcode may ultimately not be eligible. As part of our flexibility procurement process, we will check the individual meter point (MPAN) to confirm its final eligibility. This dataset offers an approximation of eligibility, without requiring any sharing of household or business level data. Quality Control Statement Dispatches are passed through a quality control algorithm to flag anomalies and erroneous data. Quality control checks include: Checking the formatting of postcodes Checking the number of postcodes mapped to each Flexibility Zone Checking that Flexibility Zone names align with those in other datasets on the Open Data Portal and on UK Power Networks’ chosen flexibility market platform: www.localflex.co.uk Assurance Statement The Flex Zone to Postcode mapping is reviewed before publication by a member of Flexibility Markets team.

Other

Download dataset information: Metadata (JSON)

Definitions of key terms related to this dataset can be found in the Open Data Portal Glossary: https://ukpowernetworks.opendatasoft.com/pages/glossary/

Part of the Vicmap Admin dataset series. Full topology. Polygon layer. attribution (postcode numbers, unique feature identification, data quality pointer etc) is available. These Boundaries are created by notification from Australia Post as their Post Code boundaries are aligned with Locality.

Aligned to Vicmap Property.

Geoplan has over 40 years’ experience of creating and maintaining industry standard Postcode geography in the UK, and beyond.

The PTV Postcode Boundaries Germany data set is based on information from a wide range of sources and, in addition to the postcode boundaries (5-digit postcodes), also contains the postcode regions (2-digit postcodes) and postcode zones (1-digit postcodes) as well as the postcode districts (PLB, 4-digit).

Context

There's a story behind every dataset and here's your opportunity to share yours.

This data set is useful for Poland postal code mapping to counties and states. Currently, Poland has postal codes assigned to more than one county and state.

Content

What's inside is more than just rows and columns. Make it easy for others to get started by describing how you acquired the data and what time period it represents, too. PL_POSTAL_CODE_CS file has a unique mapping of postal code to counties and state. Postal codes referring to more than one county and state are mapped to county and state which are having higher unique postal codes. pl_state_district_mapping file had a complete list of postal codes to counties and state, including duplicates.

Acknowledgements

We wouldn't be here without the help of others. If you owe any attributions or thanks, include them here along with any citations of past research. Data was referred from postal code related websites which include geonames.org, worldpostalcode.com and Wikipedia.

Inspiration

Your data will be in front of the world's largest data science community. What questions do you want to see answered? Which postal codes have higher economic activity? How could be transportation and energy could be conserved through having an optimal number of postal codes?

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.

A best-fit lookup between postcodes, frozen 2011 Census Output Areas (OA), Lower Layer Super Output Areas (LSOA), Middle Layer Super Output Areas (MSOA) and current local authority districts (LAD) as at May 2022 in the UK. Postcodes are best-fitted by plotting the location of the postcode's mean address into the areas of the output geographies. (File size 24 MB).Field Names - PCD7, PCD8, PCDS, DOINTR, DOTERM, USERTYPE, OA11CD, LSOA11CD, MSOA11CD, LADCD, LSOA11NM, MSOA11NM, LADNM, LADNMWField Types - All TextField Lengths - 7, 8, 8, 8, 8, 1, 9, 9, 9, 9, 55, 65, 45, 45

Code-Point® with polygons shows the notional shape of every postcode unit in Great Britain, and includes major buildings with multiple postcodes. For compelling visuals, Code-Point with polygons lets you apply shading to individual postcodes on a map. This means you can analyse location data at the most granular level and bring your results vividly to life. We give you every single postcode in Great Britain and Northern Ireland – including those for different floors of high-rise buildings. For accuracy, we give every postcode a positional quality rating and map out the boundaries of only the postcodes we can locate most precisely. Code-Point® with polygons contains postcode boundaries for Great Britain. These show the extent of each postcode unit, enabling you to analyse information by postcode. Ideal for activities such as sales targeting or market profiling, as well as any statistical work. Includes notional polygons; vertical streets data; postcode units; eastings and northings; NHS® health authority codes; administrative codes; PO box indicator; and types of delivery points.

This file contains the National Statistics Postcode Lookup (NSPL) for the United Kingdom as at February 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 - 196 MB).N.B. From now onwards this will be known simply as the National Statistics Postcode Lookup (NSPL).

Unlike in the United States, postal codes do not allow for a geographical division of the country. The same postal code can be used for addresses in several municipalities, and a municipality may have addresses with different postal codes. For more information, see article on Wikipedia.

Very exceptionally, it may be useful to have contours, especially when a procedure is built exclusively on the entry of a postal code.

This dataset contains a polygon by postal code significantly used in the National Address Base. Each polygon is a simple convex envelope around addresses using the same postal code. The polygons overlap quite widely.

Two attributes are proposed: ‘Codepostal’ and ‘nbNumeros’ (number of addresses attached in the BAN).