Summary Fact Sheet

The National Wilderness Preservation System currently contains 762 wilderness areas comprising 108,916,684 acres.
National Wilderness Preservation System
Agency Units Federal
Acreage
Bureau of Land Management 222 8,736,113
Fish and Wildlife Service 71 19,862,488
Forest Service 442 36,385,240
National Park Service 61 43,932,843

Total 796* 108,916,684

Continental United States, Hawaii, Puerto Rico
Agency Units Federal
Acreage
Bureau of Land Management 222 8,736,113
Fish and Wildlife Service 50 2,009,873
Forest Service 423 30,631,269
National Park Service 53 10,953,437

Total 748* 52,330,692





Alaska
Agency Units Federal
Acreage
Fish and Wildlife Service 21 17,852,615
Forest Service 19 5,753,971
National Park Service 8 32,979,406

Total 48* 56,585,992

* Wilderness areas that are managed by more than one agency are counted as a unit by each agency. Data last updated on 5/29/15 (various BLM acreages updated to be consistent with official national figures).