Mountain Park is a populated place LOCATED WITHIN the City of Holyoke. In turn, the City of Holyoke is located within Hampden County.
Mountain Park is located at latitude 42.244 and longitude -72.631.
Since Mountain Park is located within the City of Holyoke, all of the census and demographic data for residents of Mountain Park are included as part of the information reported for City of Holyoke in the "Profile" tab above.