Sablayan is a first class municipality in the province of Occidental Mindoro, Philippines. According to the 2010 census, it has a population of 76,153 people.
It has a total land area of 2,188.80 square kilometers, making it the largest municipality in the Philippines. The Apo Reef is part of its jurisdiction.
Sablayan is located in the central part of Occidental Mindoro. It is bounded to the north by the municipality of Santa Cruz and the municipalities of Baco, Naujan, Victoria and Socorro all in Oriental Mindoro province; to the east by the municipalities of Pinamalayan, Gloria, Bansud, Bongabong and Mansalay also in Oriental Mindoro; to the south by the municipality of Calintaan; and to the west by the Mindoro Strait.
Sablayan is politically subdivided into 22 barangays. In 1957 the following barrios were renamed: Batasan to Claudio Salgado, Hinaya to Buhay na Bato (Batong Buhay) and Iriron to San Isidro.
- Batong Buhay
- Buenavista (town proper)
- Claudio Salgado
- General Emilio Aguinaldo
- Poblacion (Lumangbayan)
- San Agustin
- San Francisco
- San Nicolas
- San Vicente
- Santa Lucia
- Santo Niño
|Population census of Sablayan
|Source: National Statistics Office
List of former mayors
- Juan Daño (1907—1910)
- Santiago Dangeros (1913–1918)
- Policarpio Urieta (1919–1921)
- Benigno Lontoc (1922–1924)
- Maximo Papa (1925–1927, 1938–1940)
- Hermogenes Daño (1928–1930)
- Lucas Fernandez (1931–1933)
- Primitovo Zamora (1934–1937)
- Pedro Gonzales (1941–1947, 1972–1986)
- Paulino Legaspi Sr. (1948–1951)
- Loreto Urieta (1952–1959, 1964–1971)
- Leoncio Ordenes Sr. (1960-1963)
- Godofredo B. Mintu (1986–1998, 2001–2010)
- Andres D. Dangeros (1998–2001)
- Eduardo B. Gadiano (2010–present)
Held once a year the Dugoy Festival is a celebration of the Mangyan culture.
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