| Sum: | 32,540,940 | 1,566 | 111,314 | 0.34% | ||||
| Sub-Group | Ethnic-Group | Language | Country | Population | Churches | Evangelicals | Evang % | Major Religion |
| Tai Kaleun | Tai Kaleun | Thai, Northeastern | Laos | 7,310 | 0 | 0 | 0% | Ethnic Religion |
| Lao Isan | Isaan | Thai, Northeastern | Laos | 7,870 | 0 | 0 | 0% | Ethnic Religion |
| Isaan (Northeastern Thai) | Isaan | Thai, Northeastern | Thailand | 16,262,880 | 211 | 30,000 | 0.18% | Buddhism |
| Thai-Khorat | Thai | Thai, Northeastern | Thailand | 16,262,880 | 1,355 | 81,314 | 0.5% | Buddhism |