Main country
Netherlands
17,512 people
49.5% of total
Surname
Koster
35,367 worldwide · 78 countries
35,367
Total population
78
Countries
1 in every 229,027
Frequency
Rarity
Moderate
Dispersion
Global
Top countries
1
Netherlands
17,512
49.5%
2
United States
8,452
23.9%
3
South Africa
2,545
7.2%
4
Germany
1,992
5.6%
5
Canada
919
2.6%
World distribution
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