Located in Southwest MS with a population of 13,000+ -McComb is noted as one of the top retirement communities in the country. McComb’s zip codes are 39648 and 39649. We are currently serving the McComb area 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. Pontchartrain Home Center is the best choice for your mobile and modular home purchase in McComb, MS.