Public lands in Washington
62 units whose boundary reaches Washington. They are 22 national wildlife refuges, 31 wilderness areas, 8 national forests and grasslands and 1 BLM national monument or conservation area, largest first within each type.
Acreage in Washington
- National wildlife refuges
- 332,513 acres
- Wilderness areas
- 4,485,186 acres
- National forests and grasslands
- 10,438,362 acres
- BLM national monuments and conservation areas
- 431,571 acres
Each figure is the acreage inside Washington for one kind of unit, summed over the units listed below. A unit that crosses into another state counts only the part of its boundary that lies in Washington. Wilderness often lies inside one of the other kinds, so the figures overlap and should not be added together.
National wildlife refuges
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Wilderness areas
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National forests and grasslands
BLM national monuments and conservation areas
Boundaries come from the agencies’ own layers. A unit is listed in every state or territory its boundary reaches. Data refreshed November 1, 2026.