Springdale is a populated place LOCATED WITHIN the City of Holyoke. In turn, the City of Holyoke is located within Hampden County.
Springdale is located at latitude 42.192 and longitude -72.62.
Since Springdale is located within the City of Holyoke, all of the census and demographic data for residents of Springdale are included as part of the information reported for City of Holyoke in the "Profile" tab above.