<Tr> <Th_colspan="2"> Population (2017) </Th> </Tr> <Tr> <Th> Municipality </Th> <Td> 24,183,300 </Td> </Tr> <Tr> <Th> Rank </Th> <Td> 1st in China </Td> </Tr> <Tr> <Th> Density </Th> <Td> 3,800 / km (9,900 / sq mi) </Td> </Tr>

Where is the city which means above or upon the sea located in china