3,020 (2000 census), increasing. Few monolinguals.
Vitiaz Strait, Siassi chain, 4 islands. Arop dialect: Madang Province, Saidor district, Long and Crown islands; Lokep dialect: Morobe Province, Siassi district, Tolokiwa island and northwest tip of Umboi island.
Arop (Poono), Lokep (Lokewe, Lukep).
Vigorous. All ages. Positive attitudes. Also use Tok Pisin [tpi].
Latin script [Latn].
Different from Arop-Sissano [aps] in Sandaun Province.