US Address Data Launch

Our address validation services now include access to US address data

Our address validation services now include access to US address data

We’re pleased to announce we now offer US address data with our address validation API.

Sourced from the United States Postal Service (USPS), every address is correctly formatted and verified against the official database. The Postal Service serves 163.1 million addresses in the US.

How it works

You can now easily add US data to address finder. Customers are able to select their country via an icon on address finder, then they can input their address to receive accurate suggestions on a drop down. Their addresses will be autofilled in real time, reducing keystrokes and the time it takes to complete the form.

Features and data points

  • Address secondary abbreviation
  • Base alternate code
  • Building or firm name
  • Carrier route ID
  • Carrier route rate sortation
  • City
  • City abbreviation
  • City state mailing name indicator
  • City state name facility code
  • Congressional district number
  • Country
  • County
  • County number
  • Data Delivery line 1
  • Delivery line 2
  • Finance number
  • Government building indicator
  • Lacs status indicator
  • Last line
  • Municipality city state
  • Preferred city
  • Preferred last line city state
  • Primary number
  • Record type code
  • Secondary number
  • Street post directional abbreviation
  • State abbreviation
  • Street name
  • Street pre directional abbreviation
  • Street suffix abbreviation
  • Update key number
  • Urbanization city state
  • ZIP code

Address Validation Integrations

US data can be implemented across all our address validation ecommerce, CRM and form integrations. We provide guides and live developer support to assist you with your chosen integration.

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Get started

If you’re using a prebuilt integration or extension with us, you can opt into US Address Validation by running the latest version of our software.

If you’re new to Ideal Postcodes, simply sign up for a free trial and head over to our address finder API documentation, where you can see demos & download ready-made integrations.

If you have any questions, drop by our developer chat or contact us here.


It will cost the same price for a US lookup as it does for a UK lookup on your current price plan. Read our what is a lookup guide to find out what counts as a lookup.

International data coming soon

We’re planning on launching international coverage this year. We’re working hard in the background formatting the address data, so we can offer you the most accurate database.

Get in touch if you would like us to add you to our mailing list and we’ll keep you updated on our progress and launch date.