Fredericktown, MO

ZIP code 63645 encompasses the small rural community of Ironton, Missouri. Nestled in the picturesque Arcadia Valley, this area is known for its stunning natural beauty, including the historic Elephant Rocks State Park with its massive red granite boulders, and the scenic Taum Sauk Mountain State Park, home to Missouri's highest point. Visitors can also explore the quaint shops and restaurants in the charming downtown area of Ironton.