Kunshan, a county-level city under the jurisdiction of Jiangsu Province, is managed by Suzhou City. It has been more than 2200 years since the establishment of the county in the Qin Dynasty. Kunshan is the birthplace of Kunqu Opera, the "ancestor of all operas". It is between 120 ° 48 ′ 21 ″ - 121 ° 09 ′ 04 ″ E and 31 ° 06 ′ 34 ″ - 31 ° 32 ′ 36 ″ N in the southeast of Jiangsu Province. In September 2010, Kunshan, Vienna, Singapore and other five cities won the United Nations Habitat Award of the year. In January 2016, Kunshan was rated as the first batch of "National Ecological Garden Cities" by the Ministry of Housing and Urban-Rural Development. According to the data of the seventh national population census, as of 0:00 on November 1, 2020, Kunshan has a permanent resident population of 2092496, which is a type II large city.

In 2019, Kunshan was successively rated as the top 100 counties and cities with comprehensive strength in 2019, the top 100 counties and cities with green development in 2019, and the top 100 counties and cities with new urbanization quality in 2019. The second batch of national agricultural product quality and safety counties. In 2019, it was one of the top 100 counties in the country in terms of business environment. In 2019, China ranked first in comprehensive economic competitiveness. In 2019, the top 100 counties (cities) in China's manufacturing industry ranked first. In 2020, the Academy of Social Sciences released the "Top 100 County-level Economic Competitiveness in China", ranking first. In October 2021, it was selected into the list of "Top 100 Smart Cities in China in 2021" and was rated as the third batch of social credit system construction demonstration areas.

In 2020, Kunshan City will achieve a gross regional product of 427.676 billion yuan, an increase of 4.0% over the previous year at comparable prices.