USDA Forest Service | 259,559 followers on LinkedIn. Caring for the land and serving people. | The United States Forest Service is an agency of the United States Department of Agriculture that administers the nation's 154 national forests and 20 national grasslands, which encompass 193 million acres (780,000 km2). Major divisions of the agency include the National Forest System, State and Private Forestry, and the Research and Development branch. The mission of the Forest Service is "To sustain the health, diversity, and productivity of the Nation’s forests and grasslands to meet the needs of present and future generations."​