School District 20 (第二〇学区 Dai Ni Rei Gakku?) is a school district found in the northwestern section of Academy City. A large district, it is bordered by both Western Tokyo and the Saitama District to the north of it, by School District 3 to the east, by School Districts 16 and 9 to the south, and by School District 17 to the southwest. It is a school district that focuses on athletic development.