Address Format
Properly format your apartment address to ensure it meets postal standards. Learn the best practices for address formatting, including the correct placement of apartment numbers and other unit identifiers.
How To Write An Address With A Unit Number
Examples
Standard Address
Business Address
International Address
PO Box Address
Examples
Standard Address
Business Address
International Address
PO Box Address
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How to get started
Step 1
Enter the street address, apartment or unit number, city, state or province, and zip or postal code in the provided form.
Step 2
Review the formatted address to ensure all details are correct and the apartment or unit number is in the right place.
Step 3
Use the formatted address for mailing envelopes, online forms, or any other purpose where a properly formatted address is required.
Main Features
Writing Address
Discover how to write an address with an apartment number. Get tips on adding apartment numbers to addresses, including where to place the unit number for various types of addresses.
Envelope Addressing
Learn how to address an envelope with an apartment number. Ensure your mail is delivered correctly by following our guidelines on where to place the apartment number on an envelope.
FAQ
Where should the apartment number be placed in an address?
The apartment number should be placed on the same line as the street address or on the line directly below it, depending on the format you are using.
Can I include the apartment number on the second line of the address?
Yes, you can place the apartment number on the second line of the address. For example: 123 Main St, Apt 4B.
What is the correct format for an apartment address?
The correct format for an apartment address typically includes the street address followed by the apartment or unit number, city, state or province, and zip or postal code.