Pernem is a northmost administrative region or sub-district in North Goa. It acts as the Gateway of Goa from Maharashtra side. It is also the name of the town of Pernem, which is its headquarters. It has a Municipal Council. Geographically, Pernem is surrounded by Sawantwadi sub-district on East, Arabian Sea on West, Bardez and Bicholim sub-district on south and Sawantwadi sub-district on north. The two rivers which decide the boundary of this sub-district are Terekhol River and Chapora River. Terekhol river acts as a border of Maharashtra and Goa while Chapora river acts as a border of Pernem sub-district and Bardez sub-district.