Located in the southeastern portion of St. Tammany Parish in Southeastern Louisiana. With a population of 32,000+, Slidell is continuing to grow. Slidell’s zip codes are 70458, 70459, 70460, and 70461. We are currently serving the Slidell and St. Tammany Parish area with all of your mobile home needs. We offer 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 the Slidell area.