Chongming County

Chongming 崇明区
District
Nanmen Port in Chengqiao, the county seat and largest town on Chongming.
Location within Shanghai (Note that this map does not display either Haiyong or Qilong)
Coordinates: 31°40′N 121°30′E / 31.667°N 121.500°E / 31.667; 121.500Coordinates: 31°40′N 121°30′E / 31.667°N 121.500°E / 31.667; 121.500
Country	People's Republic of China
Municipality	Shanghai
Area
• Total	1,411 km2 (545 sq mi)
Population
• Total	704,000
• Density	500/km2 (1,300/sq mi)
Time zone	China Standard (UTC+8)
Postal code	202100
Area code	+86 21
Website	cmx.sh.gov.cn

 Chongming  District, in the provincial-level municipality of Shanghai in China. Chongming consists of three low-lying inhabited alluvial islands at the mouth of the Yangtze north of the Shanghai peninsula: Chongming, Changxing, and Hengsha. Following its massive expansion in the 20th century, Chongming is now the 2nd-largest island administered by the People's Republic of China and the 3rd-largest in Greater China, after Taiwan and Hainan. Chongming does not, however, administer all of the Chongming: owing to its continual expansion from sediment deposited by the Yangtze, it has merged with formerly separate islands and now includes Jiangsu province's pene-exclave townships of Haiyong and Qilong. Chongming proper covers an area of 1,411 kilometers (877 mi) and had a population of 704 000 at the time of the 2010 Chinese census.