Hunter is an unincorporated community and census-designated place in Carter County, Missouri, United States. As of the 2020 census it had a population of 95. Hunter is located on State Highway 21, approximately 4 miles north of the town of Grandin, and is about 3 miles east of the Current River. The post office has closed and its mail now comes from either …Hunter is an unincorporated community and census-designated place in Carter County, Missouri, United States. As of the 2020 census it had a population of 95. Hunter is located on State Highway 21, approximately 4 miles north of the town of Grandin, and is about 3 miles east of the Current River. The post office has closed and its mail now comes from either Grandin or Ellsinore.