Sumayar is a small valley situated within the Nagar District of Gilgit-Baltistan, Pakistan. The valley is located at the confluence of the Hunza River and the Nagar River in Pakistan. It is bounded by eroded landscape to the north-east and mountain ridges to the south. Moreover, the valley is composed of nine small villages: Khai, Futhkhai, Yal, Boshat, Rashfari, Resman, Daltho, Thopkhan, and Jotorkhan.

Nagar District is a district of Pakistan's Gilgit-Baltistan area in the disputed Kashmir region. It is one of the 14 districts of Gilgit-Baltistan. Nagar District was established in 2015 by the division of the Hunza–Nagar District into two districts: the Hunza District and the Nagar District. The Nagar District is bounded on the north and north-east by the Hunza District, on the south-east by the Shigar District, on the south by the Gilgit District, and on the west by the Gupis-Yasin District. The district headquarters in the town of Nagarkhas.