Random Address Generator
Format guide

US Apartment Address Format

An apartment number can appear on Address Line 2 or at the end of the street line when the target system requires it.

Format and field rules

A split form normally places 1846 Cedar Avenue on Line 1 and Apt 4B on Line 2. A single-line address can append the unit after the street.

Do not place the apartment number in City or ZIP Code. Automation should map values to the form model instead of pasting one complete address everywhere.

Recommended test cases

Cover normal input, boundary input, and deliberately invalid input as separate cases.

  • Test Apt, Unit, and Suite labels
  • Cover an alphanumeric unit such as 4B
  • Check the Line 2 length limit

Scope

This guide explains development-test formatting. It does not provide a delivery, identity, or payment verification result.

Authorship and review

Written by
Random Address Generator Editorial Team
Reviewed by
Data and Format Review Team
Latest substantive update
Reviewed the field rules, test examples, and scope for “US Apartment Address Format.”

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