TROIER
There are 3 known people with the surname TROIER with 3 different first names. The surname TROIER is particularly common in Montana and Oregon Here you can find the geographic distribution of this nachname in all states:
| 1 | MONTANA | 2 | MONTANA | 2 |
| 1 | OREGON | 1 | OREGON | 1 |
| 1 | PENNSYLVANIA | 1 | PENNSYLVANIA | 1 |