How much of all land in the U.S. is owned by the federal government?
Per a 2017 report by the Congressional Research Service: "The federal government owns roughly 640 million acres, about 28% of the 2.27 billion acres of land in the United States. ... The amount and percentage of federally owned land in each state varies widely, ranging from 0.3% of land (in Connecticut and Iowa) to 79.6% of land (in Nevada). However, federal land ownership generally is concentrated in the West. Specifically, 61.3% of Alaska is federally owned, as is 46.4% of the 11 coterminous western states. By contrast, the federal government owns 4.2% of lands in the other states."
DocumentationFederal Land Ownership