Haimen, Nantong

Haimen
海门区
Nickname: 
The River Gateway to the Sea (江海门户)
Haimen in Nantong
Haimen
Location of the city center in Jiangsu
Coordinates: 31°52′08″N 121°10′55″E / 31.869°N 121.182°E / 31.869; 121.182
CountryPeople's Republic of China
ProvinceJiangsu
Prefecture-level cityNantong
Established (as a county)958
Became independent subprefecture1768
Became county-level cityJune 1994
Became districtJuly 2020
SeatHaimen Town
Government
  Deputy MayorLu Yifei (陆一飞) (Chinese Communist Party)
Area
  Total
1,148.77 km2 (443.54 sq mi)
Elevation
4.96 m (16.27 ft)
Highest elevation
5.2 m (17.1 ft)
Lowest elevation
2.5 m (8.2 ft)
Population
 (2020 census)
  Total
991,782
  Density860/km2 (2,200/sq mi)
Time zoneUTC+8 (China Standard)
Postal code
226100
Area code0513
Websitewww.haimen.gov.cn

Haimen (simplified Chinese: 海门; traditional Chinese: 海門; pinyin: Hǎimén; lit. 'sea gate', Qihai dialect: [haɪ.məŋ], Shanghai: [hɛ̝.məŋ]) is a district of Nantong, Jiangsu province, with a population of approximately 1 million. It is located at the opposite side of the Yangtze River to Shanghai and is directly north of Chongming Island except for a small portion that forms Haimen District's Haiyong Town. Haimen is the seat of the Roman Catholic Diocese of Haimen. Haimen is located in the poorer north Jiangsu region and, together with Qidong City, has long had one of the highest rates of liver cancer in China and in the world; over one in ten adults in the rural areas died from liver cancer c.1970, with mortality halving since then with improvements to drinking water and food.