| Official Name: | Riverhead |
| Settlement Type: | Town |
| Pushpin Label Position: | left |
| Population As Of: | 2021 |
| Population Total: | 165 |
| Utc Offset: | -3:30 |
| Utc Offset Dst: | -2:30 |
| Coordinates: | 46.9933°N -53.4833°W |
Riverhead was a small village of 20 families in 1864. It is now a town in the St. Mary's area with a population of over 400 by 1968.
In the 2021 Census of Population conducted by Statistics Canada, Riverhead had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of 101.84km2, it had a population density of in 2021.[1]