Orange County is a county located in the state of Vermont, in the United States. As of the 2010 census, the population was 28,936. Its shire town (county seat) is the municipality of Chelsea. Orange County was organized on 2 February 1781 as an original county within the state.GeographyAccording to the U.S. Census Bureau, the county has a total area of, of which is land and (0.8%) is water.Adjacent countiesCaledonia County – northeastGrafton County, New Hampshire – eastWindsor County – southwestAddison County – westWashington County – northwest
