Jemmal is a city in the Monastir Governorate of Tunisia, located about 20 kilometres (12 mi) south of Monastir. As of 2004 it had a population of 41736 people. The city is well known for its historic Grand Mosque and is at the centre of a region of olive groves. A festival takes place during the olive harvest season in November or December of each year. It is also an important industrial center, most notably for textiles and manufacturing, and the manufacturing industry employs about half of Jemmal's active population. An industrial zone there was established in 2005 on 7.5 hectares (.03 sq.