The strength of comprehensive economic strength is divided into four grades. The first grade (the top six) is Chang 'an, Fenggang, Dongcheng, Tangxia, Humen and Zhangmutou, and the second grade (7- 14) is Qingxi, Cheng Nan, Huangjiang, Changping, Houjie, Shijie, Da Lang and Daling.
This ranking may be different. After all, Humen is one of the best in China, but there are four districts in the urban area.