How do I write my apartment address with the apartment letter?

Question

It's apartment D

32 Western Ave.

How would I write that?

Answer 1

usps.com has the exact instructions for addresses.

You are supposed to put the Apartment above the street.  Most people just put it at the end. /

Answer 2

32 Western Ave.

Apt. D

Answer 3

Joe Blow

32 Western Ave. Apt. D

Any town, State, zip

Answer 4

I know D is not a number but you could also write it this way

32 Western Ave. #D

or

32 Western Ave. Apt. D