 Mandiraja inhabited by various tribes, javanese ethnic are indigenous who inhabit this region, besides Javanese tribes in Mandiraja there are also other tribes such as Sundanese, Chinese, Arabic And Other.Achievement in the field of education in the sub-district of Mandiraja, is closely related to educational facilities at the elementary school level ( elementary school ) in Mandiraja in the 2018/2019 school year a teacher on average teaches 16 elementary school students, the higher the level of education the teacher burden is also increasingly increased, for junior high school education ( junior high school ) an average teacher reaches 25 junior high school students.Mandiraja has a traditional culture, including Wayang Kulit, a traditional Javanese art.