 Due to a boundary dispute between New York and New Jersey, the boundaries of many of the southern towns of the county were not definitively established until the 19th century.According to the U.S. Census Bureau, the county has a total area of , of which is land and (3.2%) is water.Orange County is in southeastern New York State, directly north of the New Jersey-New York border, west of the Hudson River, east of the Delaware River and northwest of New York City.