Majority of the residents in Batu Kurau are Malays of Patani origin, they are closely related to Patani Malay communities in Hulu Perak as well as Air Kuning of Batang Padang district and Baling district in the neighbouring state of Kedah. The residents of this town still speaks Reman Malay as their native language alongside Malaysian language. Like the rest of Malaysia, the town also has a significant Chinese and Indian communities and also Malays from outside the state.