Summary Fact Sheet

The National Wilderness Preservation System currently contains 767 wilderness areas comprising 110,025,309 acres.
National Wilderness Preservation System
Agency Units Federal
Acreage
Bureau of Land Management 224 8,764,073
Fish and Wildlife Service 71 20,703,041
Forest Service 447 36,615,634
National Park Service 61 43,942,561

Total 803* 110,025,309

Continental United States, Hawaii, Puerto Rico
Agency Units Federal
Acreage
Bureau of Land Management 224 8,764,073
Fish and Wildlife Service 50 2,010,426
Forest Service 428 30,855,005
National Park Service 53 10,963,155

Total 755* 52,592,659





Alaska
Agency Units Federal
Acreage
Fish and Wildlife Service 21 18,692,615
Forest Service 19 5,760,629
National Park Service 8 32,979,406

Total 48* 57,432,650

* Wilderness areas that are managed by more than one agency are counted as a unit by each agency. Data last updated on 6/27/17 (National Park Service acreages updated to be consistent with the 2016 Wilderness Report (corrections to Ireteba Peaks and Stephen Mather)).