Dinghai (定海区) is a Chinese district of Zhoushan City made of 128 islands. It is based on the larger northwestern half of Zhoushan Island, where it borders Putuo in the east. The district boundary meets that of Daishan County entirely on sea to the north. Its southwestern boundary intersects those of Ningpo City entirely on sea.
District seat: Jiefang Sub-district
Population: 360,000
Area: 1444 km² (568.8 terrestrial, 875.2 marine)
In addition to Zhoushan Islands, other islands include:
Jintang (金塘)
Cezi (册å?)
Changbai (长白)
Changzhi (é•¿å³™)
Banzhi (盘峙)
Damao (大猫)
Chapi