25,000 (1978 SIL).
Zamboanga Peninsula region: Zamboanga del Sur province, peninsula west of Illana bay, Margosatubig city; Zamboanga Sibugay province, peninsula east of Sibuguey bay, Malangas city.
None known. Southern Subanen speakers understand Central Subanen [syb] (85%), but not vice versa.
Also use Cebuano [ceb], but with low comprehension.
Latin script [Latn].