Hannibal, MO

ZIP code 63401 covers the city of Hannibal, Missouri, famously known as the hometown of Mark Twain. This historic city boasts landmarks such as the Mark Twain Boyhood Home and Museum, the historic Main Street with its charming boutiques and eateries, and the scenic Mississippi Riverfront. Visitors can explore Twain's legacy, stroll along the river, and immerse themselves in the rich history of this picturesque town.