Orange is a town in Orange County, Virginia, United States. The population was 4,123 at the 2000 census. It is the county seat of Orange County. Orange is northeast of Charlottesville, and near Montpelier. According to the United States Census Bureau, the town has a total area of 3.2 square miles (8.4 Square Kilometer), of which, 3.2 square miles (8.4 Square Kilometer) of it is land and 0.31% is water.