Suzhou is located in the southeast of China. According to the official classification standard of Jiangsu Province, Sunan is the abbreviation of southern Jiangsu Province, including five prefecture-level cities such as Nanjing, Suzhou, Wuxi, Changzhou and Zhenjiang. So Suzhou belongs to southern Jiangsu, not northern Jiangsu.

Suzhou is a prefecture-level city and megacity under the jurisdiction of Jiangsu Province, located in the east of China, the southeast of Jiangsu Province and the middle of the Yangtze River Delta. It is a subtropical monsoon maritime climate with four distinct seasons, mild climate and abundant rainfall, with a total area of 8657.32 square kilometers.