The area enclosed by Guancheng Avenue, Huancheng Road, Sanyuan Road and Hongtu Road. According to the Announcement on the Division of Cheng Nan Street Public Primary School District and the Admission Method of Public Junior High School in 2023 issued by official website of Dongguan Education Bureau, the Cheng Nan Street School District in Dongguan was newly adjusted in 2023, and its location is the area surrounded by Guancheng Avenue, Huancheng Road, Sanyuan Road and Hongtu Road.