The city administrates 6 districts, 3 county-level cities, and 1 county.

Ganjingzi, Zhongshan, Xigang, Shahekou make up the urban centre. Changhai County is made up entirely of islands east of the peninsula. There are 74 sub-districts and 127 town/townships (11 of which are ethnic). (See Political divisions of China Levels)

There are, in addition, 4 national leading open zones: - The Development Zone - The Free Trade Zone - The Hi-Tech Industrial Zone - The Golden Pebble Beach National Holiday Resort.

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