Hello, Theresa -
The added 4 digits to the traditional 5 digit zip code for any location in the USA is tied to the actual street address for a location. I have no idea what street address is involved and cannot look up the 9 digit zip code for you.
Since you have internet access, you can go to the U.S. Postal Service website:
and look up the full 9 digit zip code for a particular address in Leesburg, Alabama yourself.
Once on the USPS home page, move your cursor to the MAIL & SHIP tab. There you will see a drop down menu, with one of the choices being LOOK UP A ZIP CODE. Choose that link.
Use the form on the LOOK UP A ZIP CODE page. Fill in the street address, type in Leesburg in the City box, and choose AL for the state.
Then, click or tap on the FIND button.
The correct 9 digit zip code should then display.