Vermont Route 100 (VT 100) is a north–south state highway in Vermont in the United States. Running through the center of the state, it travels nearly the entire length of Vermont and is 216.666 miles (349 km) long. VT 100 is the state's longest numbered highway of any type.

Warren is a town in Washington County, Vermont, United States. The population was 1,977 at the 2020 census. The center of population of Vermont is located in Warren. It is set between the two ranges of the Green Mountains, with approximately 25% of the township within the boundaries of the federal Green Mountain National Forest.