Napanoch is a hamlet in Ulster County, New York. It is at the junction of routes 209 and 55. It is on the Shawangunk Ridge National Scenic Byway, and is part of the Hudson River Valley National Heritage Area.
Napanoch is in the Town of Wawarsing, in Ulster County, New York (41.748231, -74.372710).
According to the United States Census Bureau, the CDP has a total area of 1.2 square miles (3.2 km²), of which, 1.2 square miles (3.1 km²) of it is land and 0.04 square miles (0.1 km²) of it (2.46%) is water.