3,400 (2007 SIL).
Sarawak, 4th to 7th divisions, upper Baram and Balui rivers, Mount Dulit area, 3 villages; Nibong branch of Lobong river, a tributary of Tinjar river.
Bok Penan (Bok), Jelalong Penan, Nibong, Penan Apo, Penan Gang (Gang), Penan Lanying, Penan Lusong (Lusong), Penan Silat, Sipeng (Speng). Not closely related to other languages.
Traditionalists are nomadic and seminomadic.