Mandiraja is a sub-district in Banjarnegara Regency, Central Java, Indonesia. Mandiraja Subdistrict in east Jakarta with a distance of about 300 km, the area is 52,61 km and the population in 2010 was 63.679 people. Mandiraja Subdistrict consists of 16 Villages 72 RW and 387 RT, the administrative center of Mandiraja sub-district is in the village of Mandiraja Kulon.