Columbia, SD

ZIP code 57433 covers the small town of Groton, South Dakota. The area is known for its picturesque scenery, with nearby landmarks such as Richmond Lake and Day County Park offering opportunities for outdoor recreation. Groton also boasts a charming downtown area with locally-owned shops and restaurants. With a population of around 1,700 residents, ZIP code 57433 is a tight-knit community with a welcoming atmosphere.