Summary Fact Sheet

The National Wilderness Preservation System currently contains 765 wilderness areas comprising 109,130,498 acres.
National Wilderness Preservation System
Agency Units Federal
Acreage
Bureau of Land Management 223 8,760,029
Fish and Wildlife Service 71 19,862,488
Forest Service 445 36,575,138
National Park Service 61 43,932,843

Total 800* 109,130,498

Continental United States, Hawaii, Puerto Rico
Agency Units Federal
Acreage
Bureau of Land Management 223 8,760,029
Fish and Wildlife Service 50 2,009,873
Forest Service 426 30,831,311
National Park Service 53 10,953,437

Total 752* 52,554,650





Alaska
Agency Units Federal
Acreage
Fish and Wildlife Service 21 17,852,615
Forest Service 19 5,743,827
National Park Service 8 32,979,406

Total 48* 56,575,848

* Wilderness areas that are managed by more than one agency are counted as a unit by each agency. Data last updated on 8/31/15 (Forest Service acreages were updated to be consistent with LAR values for FY15 3rd quarter).