Sanmen County

Sanmen
三门县
Location of Sanmen County within Taizhou
Location of Sanmen County within Taizhou
Sanmen is located in Zhejiang
Sanmen
Sanmen
Location of the seat in Zhejiang
Coordinates: 29°06′18″N 121°23′45″E / 29.1049°N 121.3958°E / 29.1049; 121.3958
CountryChina
ProvinceZhejiang
Prefecture-level cityTaizhou
Area
 • Total1,103.82 km2 (426.19 sq mi)
 • Land1,103.8 km2 (426.2 sq mi)
 • Water407 km2 (157 sq mi)
Population
 (2020)
 • Total379,500
 • Density340/km2 (890/sq mi)
Time zoneUTC+8 (China Standard)

Sanmen County (Tai-chow dialect: Sæn-meng Yön; simplified Chinese: 三门县; traditional Chinese: 三門縣; pinyin: Sānmén Xiàn) is a coastal county under the jurisdiction of Taizhou city/municipality in the east of Zhejiang Province, China. The county's total area is 1,072 km2 (414 sq mi), and has a population of about 400,000 people.[when?] The county's postal code is 317100. The county government is located at 59 Renmin Road, in the town of Haiyou.

The Sanmen Nuclear Power Station, the first power station to implement an AP1000 pressurized water reactor (PWR), can be found here.