Main country
Poland
1,249 people
75.3% of total
Surname
Kostro
1,658 worldwide · 23 countries
1,658
Total population
23
Countries
1 in every 4,885,404
Frequency
Rarity
Rare
Dispersion
Regional
Top countries
1
Poland
1,249
75.3%
2
United States
281
16.9%
3
Ukraine
39
2.4%
4
Germany
21
1.3%
5
Belarus
20
1.2%
World distribution
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