Województwo mazowieckie · 50 różnych nazwisk.
| Lp. | Nazwisko | Liczba osób | |
|---|---|---|---|
| 1 | Sędek | 33 | |
| 2 | Izdebski | 14 | |
| 3 | Lis | 14 | |
| 4 | Albrecht | 9 | |
| 5 | Jarzębski | 9 | |
| 6 | Kulik | 9 | |
| 7 | Wójcik | 9 | |
| 8 | Abramowski | 5 | |
| 9 | Adamski | 5 | |
| 10 | Balas | 5 | |
| 11 | Bocian | 5 | |
| 12 | Bursa | 5 | |
| 13 | Chanka | 5 | |
| 14 | Duszka | 5 | |
| 15 | Dyzio | 5 | |
| 16 | Fabiani | 5 | |
| 17 | Frelek | 5 | |
| 18 | Gańko | 5 | |
| 19 | Gardyński | 5 | |
| 20 | Giszczak | 5 | |
| 21 | Halladin | 5 | |
| 22 | Karasiński | 5 | |
| 23 | Kobierecki | 5 | |
| 24 | Kostrzewa | 5 | |
| 25 | Kruszewski | 5 | |
| 26 | Kwieciszewski | 5 | |
| 27 | Loranty | 5 | |
| 28 | Łysik | 5 | |
| 29 | Mandziak | 5 | |
| 30 | Mikulski | 5 | |
| 31 | Niewiadomy | 5 | |
| 32 | Nowak | 5 | |
| 33 | Ochmański | 5 | |
| 34 | Pawłowski | 5 | |
| 35 | Sęk | 5 | |
| 36 | Sendek | 5 | |
| 37 | Sieradzan | 5 | |
| 38 | Skoczek | 5 | |
| 39 | Suchecki | 5 | |
| 40 | Szafosz | 5 | |
| 41 | Truszewski | 5 | |
| 42 | Twardowski | 5 | |
| 43 | Wojnowski | 5 | |
| 44 | Woźniakowski | 5 | |
| 45 | Woźnica | 5 | |
| 46 | Wronka | 5 | |
| 47 | Wrońka | 5 | |
| 48 | Zając | 5 | |
| 49 | Zemło | 5 | |
| 50 | Zwierzyński | 5 |
Liczby są szacunkowe - informacje o danych.