Oacoma, SD

ZIP code 57365 belongs to Onida, a small town in South Dakota. This rural area is known for its picturesque prairies and rich agricultural lands. One of the most important landmarks in the area is the Oahe Dam, a massive hydroelectric dam on the Missouri River that offers stunning views and recreational opportunities. The town also boasts the Sully County Courthouse, a historic building that serves as a focal point for the community.