Main country
Poland
696 people
84.1% of total
Surname
Kostkowski
828 worldwide · 6 countries
828
Total population
6
Countries
1 in every 9,782,609
Frequency
Rarity
Rare
Dispersion
Local
Top countries
1
Poland
696
84.1%
2
United States
116
14%
3
Germany
12
1.4%
4
England
2
0.2%
5
Sweden
1
0.1%
World distribution
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