Long Hollow, South Dakota

Long Hollow is an unincorporated community and census-designated place in Roberts County, South Dakota, United States. Its population was 265 as of the 2020 census.

Geography
According to the U.S. Census Bureau, the community has an area of 14.550 mi2; 14.432 mi2 of its area is land, and 0.118 mi2 is water.