Nepperhan is a populated place LOCATED WITHIN the City of Yonkers. In turn, the City of Yonkers is located within Westchester County.
Nepperhan is located at latitude 40.956 and longitude -73.867.
Since Nepperhan is located within the City of Yonkers, all of the census and demographic data for residents of Nepperhan are included as part of the information reported for City of Yonkers in the "Profile" tab above.