US Post Code (ZIP Plus 4) generator

Last modified: April 3, 2025

The US Post Code (ZIP Plus 4) generator creates realistic ZIP+4 postal codes used in the United States. These codes consist of a standard five-digit ZIP Code followed by a hyphen and a four-digit add-on (e.g., 12345-6789). This generator is commonly used for testing systems requiring precise US postal addresses or validating ZIP Code-based functionalities.

Generator properties

The table provides key details about the generator, including the short name, sample of the generated data, the supported data types, and whether it is specific to a particular country.

Short name	Example of generated data	Data type matching	Country-specific
ZIP+4	27311-8179, 14522-2233, …	charactercharacter varyingtext	Default

Matching rules

The generator can be assigned to a column that matches any of the following rules:

The column name contains ‘ZipCode’ or ‘Zip’, preceded or followed by any or no characters, regardless of the table name.
The column name contains ‘Addr’, preceded or followed by any or no characters, and ends with ‘4’, regardless of the table name.

Configure additional options

The generator produces data based on a regular expression. Since it is built on the RegExp generator, see Regular Expression generator to customize settings and understand the correct usage of syntax.