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National Forests
National forests and grasslands managed by the USDA Forest Service, grouped by the administrative units the agency uses
- Administrative units
- 112
- Total area
- 237 million acres
- Mapped boundary acres
- Largest unit
- Tongass National Forest
- 17,701,808 acres
- States
- 43
Forests by state
A forest that crosses state lines is listed under each state
Alabama
1 unit
- National Forests in Alabama1,289,513 acres
Alaska
2 units
- Chugach National Forest6,244,689 acres
- Tongass National Forest17,701,808 acres
Arizona
6 units
- Apache-Sitgreaves National Forests2,110,688 acres
- Coconino National Forest2,000,952 acres
- Coronado National Forest1,785,091 acres
- Kaibab National Forest1,581,388 acres
- Prescott National Forest1,411,550 acres
- Tonto National Forest2,966,417 acres
Arkansas
2 units
- Ouachita National Forest2,724,422 acres
- Ozark-St. Francis National Forest1,532,900 acres
California
20 units
- Angeles National Forest706,719 acres
- Cleveland National Forest561,887 acres
- Eldorado National Forest793,653 acres
- Humboldt-Toiyabe National Forest6,704,352 acres
- Inyo National Forest2,097,006 acres
- Klamath National Forest1,705,451 acres
- Lake Tahoe Basin Management Unit331,807 acres
- Lassen National Forest1,488,712 acres
- Los Padres National Forest1,970,265 acres
- Mendocino National Forest1,073,580 acres
- Modoc National Forest2,023,026 acres
- Plumas National Forest1,431,953 acres
- Rogue River-Siskiyou National Forests1,852,705 acres
- San Bernardino National Forest805,483 acres
- Sequoia National Forest1,160,053 acres
- Shasta-Trinity National Forest2,715,499 acres
- Sierra National Forest1,418,790 acres
- Six Rivers National Forest1,273,949 acres
- Stanislaus National Forest1,090,354 acres
- Tahoe National Forest1,181,139 acres
Colorado
8 units
- Arapaho and Roosevelt National Forests2,491,783 acres
- Grand Mesa, Uncompahgre and Gunnison National Forests3,153,199 acres
- Manti-La Sal National Forest1,414,386 acres
- Medicine Bow-Routt National Forest4,592,797 acres
- Pike and San Isabel National Forests3,968,994 acres
- Rio Grande National Forest1,937,280 acres
- San Juan National Forest2,094,539 acres
- White River National Forest2,482,711 acres
Florida
1 unit
- National Forests in Florida1,423,183 acres
Georgia
1 unit
- Chattahoochee-Oconee National Forests1,796,317 acres
Idaho
10 units
- Bitterroot National Forest1,664,512 acres
- Boise National Forest2,526,862 acres
- Caribou-Targhee National Forest3,077,758 acres
- Idaho Panhandle National Forests2,943,333 acres
- Kootenai National Forest2,622,202 acres
- Nez Perce-Clearwater National Forest4,072,795 acres
- Payette National Forest2,407,306 acres
- Salmon-Challis National Forest4,396,382 acres
- Sawtooth National Forest2,190,139 acres
- Wallowa-Whitman National Forest2,525,292 acres
Illinois
2 units
- Midewin National Tallgrass Prairie27,566 acres
- Shawnee National Forest930,027 acres
Indiana
1 unit
- Hoosier National Forest646,949 acres
Kansas
1 unit
- Pike and San Isabel National Forests3,968,994 acres
Kentucky
3 units
- Daniel Boone National Forest2,043,073 acres
- George Washington and Jefferson National Forest3,487,961 acres
- Land Between the Lakes National Recreation Area171,281 acres
Louisiana
1 unit
- Kisatchie National Forest1,063,029 acres
Maine
1 unit
- White Mountain National Forest946,821 acres
Michigan
3 units
- Hiawatha National Forest1,300,321 acres
- Huron-Manistee National Forest2,028,484 acres
- Ottawa National Forest1,562,423 acres
Minnesota
2 units
- Chippewa National Forest1,598,139 acres
- Superior National Forest3,886,760 acres
Mississippi
1 unit
- National Forests in Mississippi2,373,306 acres
Missouri
1 unit
- Mark Twain National Forest3,069,958 acres
Montana
8 units
- Beaverhead-Deerlodge National Forest3,614,456 acres
- Bitterroot National Forest1,664,512 acres
- Custer Gallatin National Forest3,412,203 acres
- Flathead National Forest2,651,693 acres
- Helena-Lewis and Clark National Forest3,177,729 acres
- Idaho Panhandle National Forests2,943,333 acres
- Kootenai National Forest2,622,202 acres
- Lolo National Forest2,625,457 acres
Nebraska
1 unit
- Nebraska National Forest2,064,856 acres
Nevada
3 units
- Humboldt-Toiyabe National Forest6,704,352 acres
- Inyo National Forest2,097,006 acres
- Lake Tahoe Basin Management Unit331,807 acres
New Hampshire
1 unit
- White Mountain National Forest946,821 acres
New Mexico
6 units
- Carson National Forest1,592,477 acres
- Cibola National Forest3,215,660 acres
- Coronado National Forest1,785,091 acres
- Gila National Forest3,389,394 acres
- Lincoln National Forest1,261,954 acres
- Santa Fe National Forest1,681,851 acres
New York
1 unit
- Green Mountain and Finger Lakes National Forests854,081 acres
North Carolina
1 unit
- National Forests in North Carolina3,026,237 acres
North Dakota
1 unit
- Dakota Prairie Grasslands1,384,927 acres
Ohio
1 unit
- Wayne National Forest856,184 acres
Oklahoma
2 units
- Cibola National Forest3,215,660 acres
- Ouachita National Forest2,724,422 acres
Oregon
13 units
- Columbia River Gorge National Scenic Area292,682 acres
- Deschutes National Forest1,870,116 acres
- Fremont-Winema National Forest2,815,968 acres
- Klamath National Forest1,705,451 acres
- Malheur National Forest1,787,138 acres
- Mt. Hood National Forest1,060,160 acres
- Ochoco National Forest912,775 acres
- Rogue River-Siskiyou National Forests1,852,705 acres
- Siuslaw National Forest835,600 acres
- Umatilla National Forest1,498,100 acres
- Umpqua National Forest1,035,837 acres
- Wallowa-Whitman National Forest2,525,292 acres
- Willamette National Forest1,801,292 acres
Pennsylvania
1 unit
- Allegheny National Forest740,869 acres
South Carolina
2 units
- Francis Marion and Sumter National Forests1,381,168 acres
- Savannah River Site198,068 acres
South Dakota
4 units
- Black Hills National Forest1,537,116 acres
- Custer Gallatin National Forest3,412,203 acres
- Dakota Prairie Grasslands1,384,927 acres
- Nebraska National Forest2,064,856 acres
Tennessee
2 units
- Cherokee National Forest1,228,298 acres
- Land Between the Lakes National Recreation Area171,281 acres
Texas
2 units
- Cibola National Forest3,215,660 acres
- National Forests in Texas1,921,500 acres
Utah
6 units
- Ashley National Forest1,401,248 acres
- Dixie National Forest1,711,285 acres
- Fishlake National Forest1,787,979 acres
- Manti-La Sal National Forest1,414,386 acres
- Sawtooth National Forest2,190,139 acres
- Uinta-Wasatch-Cache National Forest2,912,954 acres
Vermont
1 unit
- Green Mountain and Finger Lakes National Forests854,081 acres
Virginia
1 unit
- George Washington and Jefferson National Forest3,487,961 acres
Washington
8 units
- Columbia River Gorge National Scenic Area292,682 acres
- Colville National Forest1,752,994 acres
- Gifford Pinchot National Forest1,496,308 acres
- Idaho Panhandle National Forests2,943,333 acres
- Mt. Baker-Snoqualmie National Forest2,025,595 acres
- Okanogan-Wenatchee National Forest3,858,129 acres
- Olympic National Forest697,411 acres
- Umatilla National Forest1,498,100 acres
West Virginia
2 units
- George Washington and Jefferson National Forest3,487,961 acres
- Monongahela National Forest1,703,725 acres
Wisconsin
1 unit
- Chequamegon-Nicolet National Forest2,005,629 acres
Wyoming
8 units
- Ashley National Forest1,401,248 acres
- Bighorn National Forest1,112,948 acres
- Black Hills National Forest1,537,116 acres
- Bridger-Teton National Forest3,466,359 acres
- Caribou-Targhee National Forest3,077,758 acres
- Medicine Bow-Routt National Forest4,592,797 acres
- Shoshone National Forest2,469,224 acres
- Uinta-Wasatch-Cache National Forest2,912,954 acres
Puerto Rico
1 unit
- El Yunque National Forest55,812 acres
Frequently asked questions
- How many national forests are there?
- The Forest Service manages 112 administrative forest units. Some units combine several national forests or grasslands under one office.
- What is the largest national forest unit?
- Tongass National Forest is the largest unit by mapped area, about 17,701,808 acres, according to Forest Service boundary data.
Source: USDA Forest Service Enterprise Data Warehouse ยท Acres are mapped boundary area and can include private land inside the boundary