Nacho is a Sub-District (Tehsil/Block/Mandal) in the Upper Subansiri District of Arunachal Pradesh. As par Census 2011 information the sub-district code of Nacho is 01609. There are about 15 sub-districts in Upper Subansiri and Nacho is one of them. Baririjo, Chetam, Daporijo, Dumporijo, Giba, Gite Ripa, Gussar, Limeking, Maro, Payeng, Puchi Geko, Siyum, Taksing, Taliha etc. are other sub-districts in Upper Subansiri.There are about 51 villages in Nacho sub-district, which you can browse from villages list.