Represa de Comerio is a reservoir and it is located in Comerio, Puerto Rico.
Comerio is located in the central- eastern region of the island and it is bordered by Naranjito and Bayamón to the north; Cidra and Barranquitas to the south; Aguas Buenas and Cidra to the east, and Barranquitas to the west.
The La Plata River runs through the center of town.