Margosatubig, situated in Zamboanga del Sur, is one of the province's oldest municipalities, alongside Pagadian City. Classified as a 4th class municipality, Margosatubig had a population of 34,461 people in 2000, residing in 6,560 households. It's the largest municipality in the second congressional district of Zamboanga del Sur, with an area of 11,169 hectares divided into 17 barangays. Located approximately 52 kilometers from Pagadian City, Margosatubig is a coastal town bordered by Lapuyan to the north, the Moro Gulf to the south, Dimataling and San Miguel to the east, and Dumanquillas Bay to the west.
