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|Country||People's Republic of China|
|• Total||2,700.3 km2 (1,042.6 sq mi)|
|• Land||100.3 km2 (38.7 sq mi)|
|• Water||2,600 km2 (1,000 sq mi)|
|• Density||1,302.1/km2 (3,372/sq mi)|
|Time zone||UTC+8 (China Standard)|
Dongtou (help·info) (simplified Chinese: 洞头区; traditional Chinese: 洞頭區; pinyin: Dòngtóu Qū) is a district consisting of 168 islands in the East China Sea, and is under the jurisdiction of prefecture-level city of Wenzhou, in southern Zhejiang province, China. It has a total area of 2,700.3 km2 (1,042.6 sq mi), of which 100.3 km2 (38.7 sq mi) is land, and, as of 2012[update] , had a population of 130,600. It was known as Dongtou County (洞头县) until 2 September 2015, when, with the approval of the State Council, it was converted to a district.
The only town is Damen (大门镇), and the only township is Luxi Township (鹿西乡)
Dongtou possesses the second-largest fishery in Zhejiang, reaching an area of about 4,800 km2 (1,900 sq mi), and is known as the "Hijiki capital of China" (中国羊栖菜之乡) as well as the "Seaweed capital of Zhejiang" (浙江紫菜之乡).