Piarco is bounded by Orange Grove to the west, Trincity/Maloney to the north and Mausica to the east.

Piarco comprises a few areas/villages such as Oropune, Golden Grove and St Helena.

Piarco, which is located south of Trincity and Tunapuna, is administered by the Tunapuna–Piarco Regional Corporation.

Caribbean Airlines has its headquarters in the Iere House, Golden Grove Road Piarco.

[2] Prior to the establishment of Caribbean Airlines, BWIA West Indies Airways was headquartered on the airport property in Piarco.