GRONTKOWSKI
There are 61 known people with the surname GRONTKOWSKI with 40 different first names. The surname GRONTKOWSKI is particularly common in Indiana and California Here you can find the geographic distribution of this nachname in all states:
| 1 | ARIZONA | 1 | ARIZONA | 1 |
| 1 | CALIFORNIA | 4 | CALIFORNIA | 4 |
| 1 | FLORIDA | 1 | FLORIDA | 1 |
| 1 | ILLINOIS | 2 | ILLINOIS | 2 |
| 1 | INDIANA | 43 | INDIANA | 43 |
| 1 | NEW JERSEY | 3 | NEW JERSEY | 3 |
| 1 | OHIO | 3 | OHIO | 3 |
| 1 | PENNSYLVANIA | 4 | PENNSYLVANIA | 4 |
| 1 | WASHINGTON | 1 | WASHINGTON | 1 |
| 1 | WISCONSIN | 4 | WISCONSIN | 4 |