Mount Hermon, LA

ZIP code 70450 covers the city of Madisonville in Louisiana. This area is a picturesque waterfront community situated on the banks of the Tchefuncte River. One of the most important landmarks in this ZIP code is the Lake Pontchartrain Causeway, the longest continuous bridge over water in the world. Madisonville is also known for its charming historic district, featuring quaint shops, restaurants, and galleries.