Mogpog is one of six (6) municipalities comprising the province of Marinduque in the Mimaropa Region. The town is politically subdivided into thirty-seven (37) barangays, and is a part of the Lone Congressional District of Marinduque.

Mogpog is known for Balanacan Harbor, the entry point for most visitors to Marinduque. The harbor is rich in history just by itself. It has always been recognized as a place of refuge for shipping because of it’s sheltered harbor. It was known way back to the Spanish and American regimes as Port San Andres.