Summary Fact Sheet

The National Wilderness Preservation System currently contains 765 wilderness areas comprising 109,138,248 acres.
National Wilderness Preservation System
Agency Units Federal
Acreage
Bureau of Land Management 224 8,760,478
Fish and Wildlife Service 71 19,862,488
Forest Service 445 36,572,721
National Park Service 61 43,942,561

Total 801* 109,138,248

Continental United States, Hawaii, Puerto Rico
Agency Units Federal
Acreage
Bureau of Land Management 224 8,760,478
Fish and Wildlife Service 50 2,009,873
Forest Service 426 30,832,193
National Park Service 53 10,963,155

Total 753* 52,565,699





Alaska
Agency Units Federal
Acreage
Fish and Wildlife Service 21 17,852,615
Forest Service 19 5,740,528
National Park Service 8 32,979,406

Total 48* 56,572,549

* 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)).