How to Find a UK Postal Code

Written by sophie levant
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How to Find a UK Postal Code

Do you need to send mail to the United Kingdom? You might have everything but the postcode. Just as Postcodes operate in the United States, having the postcode on any piece of mail bound for the United Kingdom will help avoid complications during processing and delivery. If you're having trouble remembering that particular bit of information, here's how you can find it.

Skill level:
Moderately Easy

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Things you need

  • Person or company's name
  • Street address
  • City

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  1. 1

    Try going to or another U.K. phone book site first. If the addressee is listed, this will provide the complete address information, including postcode.

  2. 2

    Go to if the recipient is not listed elsewhere. This will take you to the Royal Mail's postcode search form.

  3. 3

    Fill out the form. The main form asks for a building number, name, street and town. If you need to search by a flat number, click on "Detailed Search."

  4. 4

    Click on "Find Postcode." Your postcode results will be shown on the following page.

  5. 5

    Refine your search with any additional information you might have if the page contains too many postcode options.

Tips and warnings

  • The Royal Mail only allows up to 15 postcode searches a day.

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