The islands are divided into five main areas:
• Eastern (Mer, Ugar, Erub)
• Top western (Boigu, Dauan, Saibai)
• Western (Badu, Mabuyag, Mua)
• Central (Iama, Masig, Poruma, Warraber); and
• Inner (Keriri, Muralug, Ngurupai, Wabien/Thursday Island).