Main country
Poland
507 people
71.7% of total
Surname
Sierak
707 worldwide · 9 countries
707
Total population
9
Countries
1 in every 11,456,860
Frequency
Rarity
Rare
Dispersion
Local
Top countries
1
Poland
507
71.7%
2
United States
98
13.9%
3
Australia
41
5.8%
4
Argentina
21
3%
5
France
16
2.3%
World distribution
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