| Language | Population | Bloc | Family | Cluster | Band | |
|---|---|---|---|---|---|---|
| ● Sukurum | 1,680 | Austronesian | Oceanic | North New Guinea | Upper Markham Mountain | |
| ● Mari | 1,170 | Austronesian | Oceanic | North New Guinea | Upper Markham Mountain | |
| ● Sarasira | 860 | Austronesian | Oceanic | North New Guinea | Upper Markham Mountain | |
| ● Wampur | 400 | Austronesian | Oceanic | North New Guinea | Upper Markham Mountain |