Riverside is a populated place LOCATED WITHIN the City of Haverhill. In turn, the City of Haverhill is located within Essex County.
Riverside is located at latitude 42.764 and longitude -71.049.
Since Riverside is located within the City of Haverhill, all of the census and demographic data for residents of Riverside are included as part of the information reported for City of Haverhill in the "Profile" tab above.