Summary Fact Sheet

The National Wilderness Preservation System currently contains 758 wilderness areas comprising 109,504,348 acres.
National Wilderness Preservation System
Agency Units Federal
Acreage
Bureau of Land Management 221 8,710,087
Fish and Wildlife Service 71 20,702,488
Forest Service 439 36,165,620
National Park Service 61 43,926,153

Total 792* 109,504,348

Continental United States, Hawaii, Puerto Rico
Agency Units Federal
Acreage
Bureau of Land Management 221 8,710,087
Fish and Wildlife Service 50 2,009,873
Forest Service 420 30,411,649
National Park Service 53 10,946,747

Total 744* 52,078,356





Alaska
Agency Units Federal
Acreage
Fish and Wildlife Service 21 18,692,615
Forest Service 19 5,753,971
National Park Service 8 32,979,406

Total 48* 57,425,992

* Wilderness areas that are managed by more than one agency are counted as a unit by each agency. Data last updated on 3/20/14 (Newly designated Sleeping Bear Dunes Wilderness added; Bureau of Land Management wilderness area acreages updated to be consistent with official data tables).