伊班族
The earliest settlement of Selangau town was near the Selangau river delta (near Nanga Selangau primary school today). Initially, the area was inhabited by the "Beketan" people before they were displaced by the Iban people from Kanowit and Lemanak river. The "Beketan" people then moved to Tatau District. Meanwhile, the Iban people inhabited the Selangau delta in the 1930s and 1940s. There were only four shophouses owned by Chinese and Iban people selling groceries at that time.