Molina is a Chilean city and commune in Curicó Province, Maule Region. Molina is named after Chilean Jesuit Juan Ignacio Molina. According …Molina is a Chilean city and commune in Curicó Province, Maule Region. Molina is named after Chilean Jesuit Juan Ignacio Molina. According to the 2002 census of the National Statistics Institute, Molina spans an area of 1,551.6 km² and has 38,521 inhabitants. Of these, 28,232 lived in urban areas and 10,289 in rural areas. The population grew by 8% between the 1992 and 2002 censuses.