The islands of Shanghai are those under the jurisdiction of the Shanghai municipal government. They comprise three large inhabited islands and a shifting number of smaller, uninhabited ones. Most are alluvial islands in the Yangtze River Delta in China, although a number of islands in Hangzhou Bay off Jinshan District are also administered by Shanghai. The alluvial islands are relatively young and their number varies over time. In 2006, the city's 19 uninhabited islands covered 226.27 square kilometers (87.36 sq mi), with a total coastline length of 309 kilometers (192 mi).

Jinshan District, is a suburban district of southwestern Shanghai, neighboring Zhejiang province and Hangzhou Bay. It has a land area of 586.14 square kilometers (226.31 sq mi) and a population of 732,500 as of the 2010 Chinese census. Jinshan District, located in the southwest of Shanghai, is one of the biggest districts of the city. Local political administration is divided into nine towns and one subdistrict. About 6.2 kilometers (3.9 mi) off the coast of Jinshan, there are three islands named Dajinshan, Xiaojinshan, and Fushan. At 103 meters (338 ft) above sea level, the peak of Dajinshan Island is the highest point within the Shanghai municipality. There are several beaches along the 23.3-kilometer (14.5 mi) shoreline, which are popular tourism destinations.