High Quality Content by WIKIPEDIA articles White Plains is a city and the county seat of Westchester County, New York, United States. It is located in south-central Westchester, about 4 miles (6 km) east of the Hudson River and 2.5 miles (4.0 km) northwest of Long Island Sound. It is bordered to the north by the town of North Castle, to the north and east by the town/village of Harrison, to the south by the town/village of Scarsdale and to the west...