Slidell, LA

ZIP code 70469 covers the area of Mandeville, Louisiana. This charming town is known for its picturesque lakefront setting on Lake Pontchartrain, as well as its historic downtown district with quaint shops and restaurants. Some important landmarks in this area include the Mandeville Trailhead, Fontainebleau State Park, and the Lake Pontchartrain Causeway, the longest continuous bridge over water in the world.