<P> The districts of Arunachal Pradesh state are administrative geographical units, each headed by a deputy commissioner, an officer belonging to the Indian Administrative Service and a superintendent of police, an officer belonging to the Indian Police Service . </P> <P> As of October 2017, when Kamle district came into being, Arunachal Pradesh comprises 22 districts . Although Itanagar capital complex does not have district status it is counted by some as one (making the district count 23 now). Most of the districts are inhabited by various tribal groups . These are: </P> <Table> <Tr> <Th> Code </Th> <Th> District </Th> <Th> Headquarters </Th> <Th> Population (2011) </Th> <Th> Area (km2) </Th> <Th> Density (/ km2) </Th> <Th> Map </Th> <Th> Year created </Th> </Tr> <Tr> <Td> TA </Td> <Td> Tawang </Td> <Td> Tawang Town </Td> <Td> 49,950 </Td> <Td> 2,085 </Td> <Td> 19 </Td> <Td> </Td> <Td> 1984 </Td> </Tr> <Tr> <Td> WK </Td> <Td> West Kameng </Td> <Td> Bomdila </Td> <Td> 87,013 </Td> <Td> 7,422 </Td> <Td> 10 </Td> <Td> </Td> <Td> 1980 </Td> </Tr> <Tr> <Td> EK </Td> <Td> East Kameng </Td> <Td> Seppa </Td> <Td> 78,413 </Td> <Td> 4,134 </Td> <Td> 14 </Td> <Td> </Td> <Td> 1980 </Td> </Tr> <Tr> <Td> PA </Td> <Td> Papum Pare </Td> <Td> Yupia </Td> <Td> 176,385 </Td> <Td> 2,875 </Td> <Td> 42 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> Kurung Kumey </Td> <Td> Koloriang </Td> <Td> 89,717 </Td> <Td> 8,818 </Td> <Td> 10 </Td> <Td> </Td> <Td> 2001 </Td> </Tr> <Tr> <Td> </Td> <Td> Kra Daadi </Td> <Td> Jamin </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> 2015 </Td> </Tr> <Tr> <Td> LB </Td> <Td> Lower Subansiri </Td> <Td> Ziro </Td> <Td> 82,839 </Td> <Td> 3,460 </Td> <Td> 24 </Td> <Td> </Td> <Td> 1980 </Td> </Tr> <Tr> <Td> UB </Td> <Td> Upper Subansiri </Td> <Td> Daporijo </Td> <Td> 83,205 </Td> <Td> 7,032 </Td> <Td> 8 </Td> <Td> </Td> <Td> 1980 </Td> </Tr> <Tr> <Td> WS </Td> <Td> West Siang </Td> <Td> Along </Td> <Td> 112,272 </Td> <Td> 8,325 </Td> <Td> 12 </Td> <Td> </Td> <Td> 1980 </Td> </Tr> <Tr> <Td> ES </Td> <Td> East Siang </Td> <Td> Pasighat </Td> <Td> 99,019 </Td> <Td> 4,005 </Td> <Td> 22 </Td> <Td> </Td> <Td> 1980 </Td> </Tr> <Tr> <Td> </Td> <Td> Siang </Td> <Td> Pangin </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> 2015 </Td> </Tr> <Tr> <Td> US </Td> <Td> Upper Siang </Td> <Td> Yingkiong </Td> <Td> 33,146 </Td> <Td> 6,188 </Td> <Td> 5 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> Lower Siang </Td> <Td> Likabali </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> 2017 </Td> </Tr> <Tr> <Td> UD </Td> <Td> Lower Dibang Valley </Td> <Td> Roing </Td> <Td> 53,986 </Td> <Td> 3,900 </Td> <Td> 14 </Td> <Td> </Td> <Td> 2001 </Td> </Tr> <Tr> <Td> </Td> <Td> Upper Dibang Valley </Td> <Td> Anini </Td> <Td> 7,948 </Td> <Td> 9,129 </Td> <Td> </Td> <Td> </Td> <Td> 2001 </Td> </Tr> <Tr> <Td> AJ </Td> <Td> Anjaw </Td> <Td> Hawai </Td> <Td> 21,089 </Td> <Td> 6,190 </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> EL </Td> <Td> Lohit </Td> <Td> Tezu </Td> <Td> 145,538 </Td> <Td> 2,402 </Td> <Td> 13 </Td> <Td> </Td> <Td> 1980 </Td> </Tr> <Tr> <Td> </Td> <Td> Namsai </Td> <Td> Namsai </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> 2014 </Td> </Tr> <Tr> <Td> CH </Td> <Td> Changlang </Td> <Td> Changlang </Td> <Td> 147,951 </Td> <Td> 4,662 </Td> <Td> 27 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> TI </Td> <Td> Tirap </Td> <Td> Khonsa </Td> <Td> 111,997 </Td> <Td> 2,362 </Td> <Td> 42 </Td> <Td> </Td> <Td> 1965 </Td> </Tr> <Tr> <Td> LD </Td> <Td> Longding </Td> <Td> Longding </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> 2012 </Td> </Tr> <Tr> <Td> </Td> <Td> Kamle </Td> <Td> Raga </Td> <Td> 22,256 </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> 2017 </Td> </Tr> </Table> <Tr> <Th> Code </Th> <Th> District </Th> <Th> Headquarters </Th> <Th> Population (2011) </Th> <Th> Area (km2) </Th> <Th> Density (/ km2) </Th> <Th> Map </Th> <Th> Year created </Th> </Tr>

Make a list of all districts in arunachal pradesh with its headquarters
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