KOSTZEWSKI
There are 8 known people with the surname KOSTZEWSKI with 6 different first names. The surname KOSTZEWSKI is particularly common in Connecticut and New Hampshire Here you can find the geographic distribution of this nachname in all states:
| 1 | CONNECTICUT | 8 | CONNECTICUT | 8 |
| 1 | NEW HAMPSHIRE | 1 | NEW HAMPSHIRE | 1 |