The 3.5 million acres discussed so far refer to surface lands in the trust. Most of these lands also have subsurface, or mineral lands, with them. Even though there are 12 trust beneficiaries, the Common Schools Trust owns 95 percent of all Utah trust land. Some areas of the state have large amounts of trust land, while others do not. For example, there are only 32 acres of trust land in Salt Lake County, while Millard County contains almost 403,000 acres.
Rural areas have a larger number of trust land acres.