Tappan ( tə-PAN) is a hamlet and census-designated place in the town of Orangetown, Rockland County, New York. It is located northwest of Alpine, New Jersey, north of Northvale, New Jersey and Rockleigh, New Jersey, northeast of Old Tappan, New Jersey, east/southeast of Nauraushaun and Pearl River, south of Orangeburg, southwest of Sparkill, and west of Palisades; Tappan shares a border with each. The population was 6,613 at the 2010 census.
The Tappan tribe were a Lenape people who inhabited the region radiating from the Hudson Palisades and the New York – New Jersey Highlands at the time of European colonization in the 17th century. "Tappan" is derived from the Lenape word "tuphanne" thought to mean "cold water."
The first Orange County courthouse was built in 1691 in Tappan, though by 1737, sessions alternated between Tappan and Goshen. The first school house in Rockland County was built in 1711 in Tappan. It was used as a school until 1860. There would not be another school in the county until late in the 18th century.
The Orangetown Resolutions were adopted in 1774 at the home of Yoast Mabie. The Dutch colonial house was built by his brother Casparus Mabie in Tappan. When Great Britain imposed duties on the colonies and closed the port of Boston, local inhabitants passed resolutions calling for a boycott of British imports and exports on Monday, July 4, 1774, two years to the day before the Declaration of Independence was proclaimed.