Find ZIP+4 for an Address

Look up and find the ZIP+4 for a single address — or thousands or millions of addresses all at once

Use the tool below to find the ZIP+4 for a single address and the calculator below to see how much your full list of addresses would cost.

Find the ZIP+4 for an address. No signup required.

Please enter an address in the US or Canada

Do you want to append additional data?

Read more about data appends »
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One-Time Recurring

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Do you want any data appends?

Read more about data appends »
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USPS Data Appends

One-click add a variety of USPS data appends to a list of addresses
Learn more

API Documentation

Use our API to integrate ZIP+4 appends into an app in real time, for batches, or bulk process CSVs
Go to API Docs
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