Address and apartment number mail

Here is an example of how to format an address with an apartment number for mail:

Street Address

City, State, ZIP

Note:

Here is an example of how this would look on an envelope:

Anytown, CA 12345

123 Main Street Apt 101

Alternatively, you can also use a format like this:

123 Main Street, Apt 101 Anytown, CA 12345

Either way, make sure to include the apartment number and the correct city, state, and ZIP code to ensure that your mail is delivered correctly.