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<!DOCTYPE html> <html lang="en"> <head> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="/static/css/tachyons.min.css" /> <link rel="stylesheet" href="/static/css/fonts.css" /> <link rel="stylesheet" href="/static/css/style.css" /> <link rel="stylesheet" href="/static/css/custom.css" /> <title>About this site</title> <style> body { overflow-wrap: break-word; } </style> </head> <body class="home w-100 sans-serif near-black base-font bg-wavy"> <header class="body header-font normal ph3 ph5-ns pt3 pb4 moon-gray"> <div class="fr f3-ns mt1 mr2 w-100 w-auto-ns tr pb3"> <a href="/about" class="white logo underline double underline-yellow">About</a> | <a href="/about#data-sources" class="white logo underline double underline-yellow">Data sources</a> | <a href="/search/" class="white logo underline double underline-yellow">Search</a> | <a href="/#api" class="white logo underline double underline-yellow">API</a> </div> <h1 class=" tracked-tight f1 lh-title mv0 logo normal"> <a href="/" class="link moon-gray underline-yellow underline"> Find that Postcode </a> </h1> </header> <main class="ph0 bg-white cf"> <header class="fl w-100 ph3 ph5-ns entry-content lh-copy f4"> <h2 class="f2-ns mt4 mb0 f3 lh-title normal"> About this site </h2> </header> <section id="content" class="fl w-100 ph3 pv5 ph5-ns lh-copy f4"> <section class="section entry-content measure-wide" id="about"> <p class="normal"> This site presents data on UK postcodes and geographical areas, based on open data released by the <a href="" class="link blue underline-hover">Office for National Statistics</a> and <a href="" class="link blue underline-hover">Ordnance Survey</a>. </p> <p class="normal"> It is intended to help the process of enhancing existing data sets, for example by allowing someone to lookup which local authority a postcode is in. </p> <p class="normal"> We are currently working on a new version of this site, which will be released soon. The new version will be faster, more accurate, and will include more data. It will also include a paid version of the API, with guaranteed uptime and a higher rate limit. </p> <p class="normal"> If you have any questions, please contact us at <a href="/cdn-cgi/l/email-protection#6a03040c052a0c03040e1e020b1e1a05191e09050e0f441f01" class="link blue underline-hover"><span class="__cf_email__" data-cfemail="a0c9cec6cfe0c6c9cec4d4c8c1d4d0cfd3d4c3cfc4c58ed5cb">[email protected]</span></a> </p> <h2 class="f2-ns f3 header-font normal" id="data-sources">Data sources</h2> <ul> <li><strong>Postcode data</strong>: <a class="link blue underline-hover" href="https://geoportal.statistics.gov.uk/datasets/national-statistics-postcode-lookup-november-2019">NSPL</a> </li> <li><strong>Area data</strong>: <a class="link blue underline-hover" href="https://geoportal.statistics.gov.uk/datasets/code-history-database-june-2019-for-the-united-kingdom">Code History Database</a> and <a class="link blue underline-hover" href="https://geoportal.statistics.gov.uk/datasets/register-of-geographic-codes-june-2019-for-the-united-kingdom">Register of Geographic Codes</a> </li> <li><strong>Boundary data</strong>: <a class="link blue underline-hover" href="http://geoportal.statistics.gov.uk/datasets?q=Latest_Boundaries&sort_by=name&sort_order=asc">ONS Geoportal</a></li> <li><strong>Placenames</strong>: <a class="link blue underline-hover" href="https://geoportal.statistics.gov.uk/datasets/index-of-place-names-in-great-britain-september-2019">Index of Place Names in Great Britain</a></li> <li><strong>MSOA names</strong>: <a class="link blue underline-hover" href="https://houseofcommonslibrary.github.io/msoanames/">House of Commons Library</a> (<a class="link blue underline-hover" href="https://www.parliament.uk/site-information/copyright/open-parliament-licence/">Open Parliament Licence</a>)</li> </ul> <p> <a href="https://www.ons.gov.uk/methodology/geography/licences" class="link blue underline-hover">Postcode data from ONS used under Open Government License</a><br> Contains OS data 漏 Crown copyright and database right 2025 <br> Contains Royal Mail data 漏 Royal Mail copyright and database right 2025 <br> Contains National Statistics data 漏 Crown copyright and database right 2025 </p> <p> Northern Ireland postcodes are included based on the <a href="https://www.ons.gov.uk/methodology/geography/licences" class='link blue underline-hover'>Northern Ireland End User Licence</a>. The licence covers internal use of the data. Commercial use may require additional permission. </p> </section> <section class="section" id="api"> <h2 class="f2-ns f3 header-font normal">Use the API</h2> <div class="fl w-third-l w-100 pa2"> <p>The API provides programmatic access to the postcode data, using the <a href="http://jsonapi.org/">JSON api</a> specification.</p> <p>The <code class="bg-light-gray pa1 code">.json</code> at the end of the url is optional, requests will return json by default unless <code class="bg-light-gray pa1 code">.html</code> is added.</p> <p><a href="https://en.wikipedia.org/wiki/ONS_coding_system#Current_GSS_coding_system">ONS GSS codes</a> are used for area IDs.</p> <p class="normal"> Rate limits apply to use of the API. If you need a higher rate limit, or guaranteed uptime, please contact us at <a href="/cdn-cgi/l/email-protection#7f161119103f1916111b0b171e0b0f100c0b1c101b1a510a14"><span class="__cf_email__" data-cfemail="8ce5e2eae3cceae5e2e8f8e4edf8fce3fff8efe3e8e9a2f9e7">[email protected]</span></a>. </p> </div> <div class="fl w-two-thirds-l w-100 pa2 is-medium"> <h3 class="f3-ns f4 header-font ma0 normal">Example requests</h3> <table class="w-100"> <tr class=""> <td class="db pv3-l dtc-l bw1 bt b--light-gray">Get data on a postcode</td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"><code class="bg-light-gray pa1 code">/postcodes/AB12+3CD.json</code> </td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"><a href="/postcodes/SW1A%201AA.json">Example</a></td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"><a href="/postcodes/SW1A%201AA.html">Example HTML</a></td> </tr> <tr class=""> <td class="db pv3-l dtc-l bw1 bt b--light-gray">Get data about a postcode nearest<br>to a latitude, longitude point</td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"><code class="bg-light-gray pa1 code">/points/51.501009,-0.141588.json</code> </td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"><a href="/points/51.501009,-0.141588.json">Example</a></td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"><a href="/points/51.501009,-0.141588.html">Example HTML</a></td> </tr> <tr class=""> <td class="db pv3-l dtc-l bw1 bt b--light-gray">Get data about an area<br><small>Includes 5 random postcodes from the area</small></td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"><code class="bg-light-gray pa1 code">/areas/E01000001.json</code> </td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"><a href="/areas/E14000639.json">Example</a></td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"><a href="/areas/E14000639.html">Example HTML</a></td> </tr> <tr class=""> <td class="db pv3-l dtc-l bw1 bt b--light-gray">Get an area's boundaries as geojson<br><small>NB not available for all areas</small></td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"><code class="bg-light-gray pa1 code">/areas/E01000001.geojson</code> </td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"><a href="/areas/E14000639.geojson">Example</a></td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"></td> </tr> <tr class=""> <td class="db pv3-l dtc-l bw1 bt b--light-gray">Get data about a place<br><small>Includes 5 random postcodes from the area</small></td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"><code class="bg-light-gray pa1 code">/places/IPN0000001.json</code> </td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"><a href="/places/IPN0000543.json">Example</a></td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"><a href="/places/IPN0000543.html">Example HTML</a></td> </tr> <tr class=""> <td class="db pv3-l dtc-l bw1 bt b--light-gray">Search for areas containing a string</td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"><code class="bg-light-gray pa1 code">/search/?q=search+term</code></td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray">  </td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"><a href="/search/?q=Westminster&filetype=html">Example HTML</a></td> </tr> <tr class=""> <td class="db pv3-l dtc-l bw1 bt b--light-gray">Get information about a type of area<br><small>(local authority, parliamentary constituency, etc)</small></td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"><code class="bg-light-gray pa1 code">/areatypes/pcon.json</code> </td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"><a href="/areatypes/pcon.json">Example</a></td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"><a href="/areatypes/pcon.html">Example HTML</a></td> </tr> <tr class=""> <td class="db pv3-l dtc-l bw1 bt b--light-gray">Get information about all types of area</td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"><code class="bg-light-gray pa1 code">/areatypes/</code></td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"></td> <td class="db pv3-l dtc-l bw0 bw1-l bt b--light-gray"><a href="/areatypes/">HTML</a></td> </tr> </table> </div> </section> <section class="section entry-content measure-wide" id="privacy"> <h2>Privacy</h2> <p> To get critical information about the behavior of our visitors, we use <a href="https://simpleanalytics.com" target="_blank">Simple Analytics</a>. This analytics software gives us insight about our visitors only in general, but not about individuals, as it does not track visitors and does not store any personal identifiable information. </p> <p> <a href="https://docs.simpleanalytics.com/what-we-collect" target="_blank">Go to their documentation</a> to find out what Simple Analytics collects (and most importantly what they don't). </p> <p> We also serve ads using <a href="https://www.ethicalads.io/">Ethical Ads</a>. Ethical Ads does not collect personal information as part of serving ads. </p> </section> </section> </main> <footer id="contentinfo" class="body db pb5 moon-gray bg-near-black cf"> <div id="sponsor-banner" class="w-100 mb5 bg-gold near-black tc pv3 ph3 ph5-ns "> If you have found Find that Postcode a useful resource, please consider <a href="https://github.com/sponsors/kanedata/" class="b near-black">supporting its development through Github Sponsors</a> </div> <div class="w-100 w-third-l fr-l ph3 ph5-ns"> <p class="f7 lh-headline"> <a href="https://www.ons.gov.uk/methodology/geography/licences" class="link yellow">Postcode data from ONS used under Open Government License</a><br> Contains OS data 漏 Crown copyright and database right 2025 <br> Contains Royal Mail data 漏 Royal Mail copyright and database right 2025 <br> Contains National Statistics data 漏 Crown copyright and database right 2025 </p> <p class="f7 lh-headline"> Locations are approximate and intended for statistical analysis, not navigation. </p> </div> <div class="w-100 w-two-thirds-l ph3 ph5-ns"> <p class="mv2 pa0"> <strong>Find that Postcode</strong> | <a href="/about" class="link yellow underline-hover">About</a> | <a href="/about#data-sources" class="link yellow underline-hover">Data sources</a> | <a href="/about#privacy" class="link yellow underline-hover">Privacy</a> | <a href="/cdn-cgi/l/email-protection#573e39313817313e3933233f3623273824233438333279223c" class="link yellow underline-hover">Contact</a> | <a href="https://findthatcharity.uk/" target="_blank" class="link yellow underline-hover">Find that Charity</a> </p> <div class="mv2 pa0"> <a href="https://github.com/kanedata/find-that-postcode" target="_blank" class="link yellow underline-hover" title="View code on Github">Code</a> [<a href="https://github.com/kanedata/find-that-postcode/blob/main/LICENSE" target="_blank" class="link yellow underline-hover">MIT License</a>] </div> <p class="ma0 pa0">漏 2017 - 2025 <a href="https://kanedata.co.uk/" class="link yellow underline-hover">Kane Data Limited</a></p> <p class="mv2 pa0 f7"> Kane Data Limited is registered as a company in England (company number <a href="https://find-and-update.company-information.service.gov.uk/company/14015213" target="_blank" class="link yellow">14015213</a>) </p> </div> </footer> <script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script><script async defer src="https://scripts.simpleanalyticscdn.com/latest.js"></script> <noscript><img src="https://queue.simpleanalyticscdn.com/noscript.gif" alt="" referrerpolicy="no-referrer-when-downgrade" /></noscript> </body> </html>

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