| Language | Population | Bloc | Family | Cluster | Band | |
|---|---|---|---|---|---|---|
| ● Hewa | 4,570 | Sepik-Ramu | Sepik | Sepik Hill | Sanio | |
| ● Saniyo-Hiyewe | 1,690 | Sepik-Ramu | Sepik | Sepik Hill | Sanio | |
| ● Niksek | 1,250 | Sepik-Ramu | Sepik | Sepik Hill | Sanio | |
| ● Bikaru | 220 | Sepik-Ramu | Sepik | Sepik Hill | Sanio | |
| ● Piame | 220 | Sepik-Ramu | Sepik | Sepik Hill | Sanio |