McKnight and Bay is a populated place LOCATED WITHIN the City of Springfield. In turn, the City of Springfield is located within Hampden County.
McKnight and Bay is located at latitude 42.117 and longitude -72.566.
Since McKnight and Bay is located within the City of Springfield, all of the census and demographic data for residents of McKnight and Bay are included as part of the information reported for City of Springfield in the "Profile" tab above.