Katja Schulz // FlickrIdaho is the #3 state with the most land owned by the federal governmentThe federal government owns 27.1% of all land in the United States, or 615.3 million of 2.27 billion acres. The Bureau of Land Management, a governmental division that manages public lands, controls 39.7% of federally owned lands. From 1990 to 2018, federal land ownership shrunk by 31.5 million acres. Idaho by the numbers– Land owned by federal government: 61.9% (32.8 million of 52.9 million acres)– Land owned by agency: FS (62.4%), BLM (35.9%), NPS (1.6%), FWS (0.2%), DOD (0%)– Percent change since 1990: +0.7%About 14% of the public land in Idaho has been protected with a wilderness designation and is off-limits to mining and timber harvesting. Idaho: 61.9% of landStates with the least land owned by the federal government#1.