Located in Washington Parish in Southeast, Louisiana – Franklinton is one of the fastest growing cities in the state. Franklinton’s zip code is 70438. We are currently serving the Franklinton and surrounding areas with all of your mobile home needs by offering a variety of new and used mobile homes, as well as, modular homes to fit your style. I-55 Home Center is the best choice for your mobile and modular home purchase in Franklinton, LA.