Ramapo is a town in Rockland County, New York, United States. It was originally formed as New Hampstead, in 1791, and became Ramapo in 1828. It shares its name with the Ramapo River. The present-day town was originally inhabited by the Munsee, a band of the Lenape nation. Their descendants now live on Stag Hill in Mahwah, New Jersey, where they form the state (NJ)-recognized Ramapo Lenape Nation. The population of the town is thought to be about 50% Jewish.