<Table> <Tr> <Th_colspan="3"> Historical population </Th> </Tr> <Tr> <Th> Year </Th> <Th> Pop . </Th> <Th> ±% </Th> </Tr> <Tr> <Th> 1871 </Th> <Td> 35,310 </Td> <Td>--</Td> </Tr> <Tr> <Th> 1881 </Th> <Td> 38,967 </Td> <Td> + 10.4% </Td> </Tr> <Tr> <Th> 1891 </Th> <Td> 46,383 </Td> <Td> + 19.0% </Td> </Tr> <Tr> <Th> 1901 </Th> <Td> 53,080 </Td> <Td> + 14.4% </Td> </Tr> <Tr> <Th> 1911 </Th> <Td> 47,000 </Td> <Td> − 11.5% </Td> </Tr> <Tr> <Th> 1921 </Th> <Td> 68,000 </Td> <Td> + 44.7% </Td> </Tr> <Tr> <Th> 1931 </Th> <Td> 95,000 </Td> <Td> + 39.7% </Td> </Tr> <Tr> <Th> 1941 </Th> <Td> 130,348 </Td> <Td> + 37.2% </Td> </Tr> <Tr> <Th> 1951 </Th> <Td> 198,000 </Td> <Td> + 51.9% </Td> </Tr> <Tr> <Th> 1961 </Th> <Td> 286,000 </Td> <Td> + 44.4% </Td> </Tr> <Tr> <Th> 1971 </Th> <Td> 356,000 </Td> <Td> + 24.5% </Td> </Tr> <Tr> <Th> 1981 </Th> <Td> 704,000 </Td> <Td> + 97.8% </Td> </Tr> <Tr> <Th> 1991 </Th> <Td> 816,321 </Td> <Td> + 16.0% </Td> </Tr> <Tr> <Th> </Th> <Td> 930,882 </Td> <Td> + 14.0% </Td> </Tr> <Tr> <Th> 2011 </Th> <Td> 1,601,438 </Td> <Td> + 72.0% </Td> </Tr> <Tr> <Td_colspan="3"> Sources: <Ul> <Li> 1871--1901: </Li> <Li> 1911--2001: </Li> <Li> 1981: Raise in population due to merger of Singanallur Municipality . </Li> <Li> 2001: </Li> <Li> 2011: </Li> </Ul> </Td> </Tr> </Table> <Tr> <Th_colspan="3"> Historical population </Th> </Tr> <Tr> <Th> Year </Th> <Th> Pop . </Th> <Th> ±% </Th> </Tr> <Tr> <Th> 1871 </Th> <Td> 35,310 </Td> <Td>--</Td> </Tr>

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