20,000 (1990 M. Martens), increasing. 15,000 in the region, 5,000 outside (1990 SIL), 500 in Benggaulu.
Sulawesi Barat province: Lariang river west bank area; Sulawesi Selatan province: north Luwu regency, enclave within Seko Padang [skx] language area; south Pasangkayu regency, Mamuju sub-district; Sulawesi Tengah province: Donggala regency, South Kulawi and Pipikoro sub-districts, 32 villages on Lariang river and tributaries.
Winatu (Northern Uma), Tobaku (Dompa, Ompa, Western Uma), Tolee’ (Eastern Uma), Kantewu (Central Uma), Southern Uma (Aria), Benggaulu (Bingkolu), Bana. Literature exists in Kantewu dialect, but many would prefer to read their own dialect.
Use vigorous in the Uma homeland. Kantewu is prestige dialect. Among those living outside (e.g., in Palu, Palolo, Gimpu), use is vigorous among adults. For those who move away as adults, Uma remains language of the home. For those who move away as children, half retain Uma as home language. Daily work, local administration, religious services. All ages. Positive attitudes. Also use Indonesian [ind], Ledo Kaili [lew], Rampi [lje], Seko Padang [skx].
Latin script [Latn].