| Sum: | 725,000 | 100 | 40,000 | 5.52% | ||||
| Sub-Group | Ethnic-Group | Language | Country | Population | Churches | Evangelicals | Evang % | Major Religion |
| Singkil | Singkil | Batak Karo | Indonesia | 25,000 | 0 | 0 | 0% | Islam |
| Batak Karo | Batak Karo | Batak Karo | Indonesia | 700,000 | 100 | 40,000 | 5.71% | Christianity |