The Mooresville Post Office in Mooresville, Limestone County, is the oldest operational post office in the state of Alabama. Several of the mailboxes have been owned by the same families since before the American Civil War, and it continues to serve local residents.

Historians believe the post office, a small single-story building with an open-gable roof, was constructed in its current location around 1840, based on the type of materials and methods used in the construction. A lack of axe markings on the lumber used in the building suggests that the wood came from a local sawmill, which dates the building after 1840. The handmade bricks used to construct the chimney suggest that the date of construction may have been prior to 1840, however. In addition, the heaviness of the lumber and use of traditional pegged joints, both common traits of earlier structures, suggests that carpenters combined earlier methods of construction with contemporary techniques that emerged after the establishment of the sawmill. The post office boxes are numbered 1 to 48. They, and some furnishings, were transferred from the Stagecoach Tavern during the transition of post offices and are even older than the post office building itself. It is furnished with Windsor chairs and braided rugs that all date to the nineteenth century.

The U.S. Postal Service rents the post office building which is owned by the town of Mooresville. Visitors are welcome. The building is located at the corner of Lauderdale and High Streets. It is open Monday through Saturday between 8:00 a.m. to 10:00 a.m. The National Register of Historic Places placed the entire town of Mooresville, including the post office, on its registry in 1972 as a historic district. It encompasses 29 acres and includes 14 structures dating from the 1820s to the 1850s.
Additional Resources
Jones, Pat. The Story of Mooresville: A Town Older than the State. Huntsville, Ala.: North Alabama Historical Association, 1968.
Additional Resources
Jones, Pat. The Story of Mooresville: A Town Older than the State. Huntsville, Ala.: North Alabama Historical Association, 1968.