It is composed of nine villages: Armășeni (Csíkménaság), Armășenii Noi (Ménaságújfalu), Bancu (Csíkbánkfalva), Ciobăniș (Csobányos), Ciucsângeorgiu, Cotormani (Kotormány), Eghersec (Egerszék), Ghiurche (Gyürke), and Potiond (Pottyond).

The commune lies in the Székely Land, an ethno-cultural region in eastern Transylvania.

It is situated in the foothills of the Ciuc Mountains, at an altitude of 743 m (2,438 ft), on the banks of the rivers Ciobănuș and Uz.

The village formed part of the Székely seat of Csíkszék, then from 1876 until 1918 to Csík County in the Kingdom of Hungary.

The territory of Northern Transylvania remained under Soviet military administration until March 9, 1945, after which it became again part of Romania.