Warren is a town in Washington County, Vermont, United States. The population was 1,705 at the 2010 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 town under Green Mountain National Forest ownership. Sugarbush Resort located here is a ski resort, and the town is traversed by the Long Trail, a hiking trail running from the border with Massachusetts to the Canada–US border.