The region possesses many beach front properties and Trinidad's largest reservoir of natural gas and crude oil along its eastern coast.

It includes the Ortoire Block, an 184-square-kilometre (71 sq mi) resource exploration area where Trinidad's largest onshore natural gas discovery was found in the Ortoire syncline.

[2] The Corporation's area of responsibility comprises 39 discrete communities.

It has the second largest landmass of any Regional Corporation in Trinidad.

Two of the 41 Trinidadian electoral districts are located in Mayaro–Rio Claro: Mayaro and Moruga/Tableland.