Województwo mazowieckie · 67 różnych nazwisk.
| Lp. | Nazwisko | Liczba osób | |
|---|---|---|---|
| 1 | Jastrzębowski | 15 | |
| 2 | Mikołajewski | 15 | |
| 3 | Bęski | 8 | |
| 4 | Bogusławski | 8 | |
| 5 | Chmielewski | 8 | |
| 6 | Gajda | 8 | |
| 7 | Grocki | 8 | |
| 8 | Gruszka | 8 | |
| 9 | Kaczmarczyk | 8 | |
| 10 | Kołakowski | 8 | |
| 11 | Kozłowski | 8 | |
| 12 | Krymer | 8 | |
| 13 | Łączyński | 8 | |
| 14 | Łapka | 8 | |
| 15 | Lipiński | 8 | |
| 16 | Moszczyński | 8 | |
| 17 | Podowski | 8 | |
| 18 | Pokus | 8 | |
| 19 | Siekierski | 8 | |
| 20 | Skudynowski | 8 | |
| 21 | Słupski | 8 | |
| 22 | Sobiecki | 8 | |
| 23 | Stajszczak | 8 | |
| 24 | Szczepkowski | 8 | |
| 25 | Szypulski | 8 | |
| 26 | Wernik | 8 | |
| 27 | Zakrzewski | 8 | |
| 28 | Zembrzuski | 8 | |
| 29 | Pietrzak | 4 | |
| 30 | Błaszczak | 2 | |
| 31 | Bogdański | 2 | |
| 32 | Gawski | 2 | |
| 33 | Gorsiak | 2 | |
| 34 | Bąbała | 1 | |
| 35 | Bąkiewicz | 1 | |
| 36 | Bombała | 1 | |
| 37 | Cichocki | 1 | |
| 38 | Cytacki | 1 | |
| 39 | Domagalski | 1 | |
| 40 | Dondzik | 1 | |
| 41 | Dudziński | 1 | |
| 42 | Dylewski | 1 | |
| 43 | Dzwonek | 1 | |
| 44 | Głowacki | 1 | |
| 45 | Górski | 1 | |
| 46 | Idźkowski | 1 | |
| 47 | Jakubowski | 1 | |
| 48 | Jaworski | 1 | |
| 49 | Kasztelan | 1 | |
| 50 | Koneczna | 1 |
Liczby są szacunkowe - informacje o danych.