Longlake, SD

ZIP code 57457 serves Rockham, a small rural community in Faulk County in north-central South Dakota. The area is characterized by open prairie, farmland, and widely spaced settlements. Its notable local landmarks include Rockham Lutheran Church and Rockham Cemetery, while the community’s modest town center is its main gathering point. Larger services and attractions are found in nearby towns such as Faulkton.