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Postcode Lookup

Search and validate UK addresses with a postcode

Use the most familiar and fastest way to find an address with our postcode search service

Postcode Lookup

Good Reasons to Integrate

  • Postcode Lookup is the most accessible, easy-to-use and widely understood address search type in the UK

  • Works with the Republic of Ireland address file, Eircode

  • Quick integration with our dedicated plugin. Continually updated and tested, Postcode Lookup also has dozens of low or no code integrations

  • Our Postcode Lookup tools allow for extensive customisation so you can seamlessly add it to your form

  • Customise address capture behaviour to exclude specific areas and localities

Find Out More

Enter your Postcode and Give it a Try

Why use Postcode Lookup?

Great User Experience

Great User Experience

Postcode lookup is the most familiar and fastest way to accurately retrieve an address in the UK

Easy to Integrate

Easy to Integrate

We provide ready-made, customisable postcode finder libraries with excellent technical and account support to get you started quickly

Data Quality

Ensure Data Quality

Retrieve the correct postcode addresses with every search. Our address datasets are updated everyday

Why Ideal Postcodes

Cutting Edge

The most fully-featured UK address validation and postcode lookup tools available

Unmatched Accuracy

Access the UK's most accurate data with rootftop accurate geolocations, UPRN and more

Well Supported

Simple integration with clear documentation, open-source libraries and live support

Data Protected

ISO-27001 Certified and GDPR Compliant. Your customer data never leaves our UK and EU data centres

Agile Framework

Scale your business and improve operations with a faster and more efficient process

High Quality

Ideal Postcodes embraces continuous improvement and launches industry leading solutions

Social Responsibility

We believe in giving back to the community. Our address validation solutions provide screen reader compatibility


Easy products,integrations, documentation simplified billing and a great user interface

You're in Good Company

Try Address Validation for Free

No Risk - No Credit Card Required - Integrate Today

1 Month Trial200 Free LookupsFull Support