Changshu is subordinate to Suzhou City, Jiangsu Province. Changshu City, referred to as Yu for short, is named "Changshu" because "the soil is fertile and there is no flood and drought at the age of" and is a famous national historical and cultural city. Changshu is located in the water town of Jiangnan, known as the "blessed land of Jiangnan", and is one of the birthplaces of Wu culture.
Changshu is adjacent to the Yangtze River in the northeast, Taicang in the southeast, Kunshan City and Xiangcheng District of Suzhou City in the south, Jiangyin City and Xishan District of Wuxi City in the west, and Zhangjiagang City in the northwest. Changshu governs 8 towns and 6 streets, with a total area of 1264 square kilometers. The territory is low and flat, with intertwined water networks. It is located in the temperate zone and belongs to the subtropical monsoon marine climate.
Changshu is located in the forefront of China's county economy, culture, finance, commerce, exhibition and shipping center cities. Since 2019, it has been successively rated as one of the top 100 counties and cities of national green development in 2019, one of the top 100 districts of national new urbanization quality in 2019, one of the top 100 counties of national business environment in 2019 and one of the top 10 counties of national comprehensive economic competitiveness in 2019. On December 31, 2019, it was selected as a national typical county for rural innovation and entrepreneurship.