GROUWINKEL
There are 12 known people with the surname GROUWINKEL with 10 different first names. The surname GROUWINKEL is particularly common in California and Iowa Here you can find the geographic distribution of this nachname in all states:
| 1 | ARIZONA | 1 | ARIZONA | 1 |
| 1 | CALIFORNIA | 5 | CALIFORNIA | 5 |
| 1 | ILLINOIS | 3 | ILLINOIS | 3 |
| 1 | IOWA | 3 | IOWA | 3 |