| canada | alberta | rhodoblastus acidophilus | species | 6 | 0 |
| china | hunan | uncultured rhodoblastus sp. | species | 1 | 0 |
| nigeria | | uncultured rhodoblastus sp. | species | 1 | 0 |
| russia | | rhodoblastus sphagnicola | species | 3 | 0 |
| russia | tver oblast | rhodoblastus sphagnicola | species | 1 | 0 |
| united states | | rhodoblastus acidophilus | species | 294 | 0 |
| united states | illinois | rhodoblastus acidophilus | species | 191 | 0 |
| united states | new york | rhodoblastus acidophilus | species | 1 | 0 |