Main country
United States
2,629 people
59.6% of total
Surname
Mastro
4,409 worldwide · 40 countries
4,409
Total population
40
Countries
1 in every 1,837,151
Frequency
Rarity
Rare
Dispersion
Regional
Top countries
1
United States
2,629
59.6%
2
Italy
857
19.4%
3
Brazil
432
9.8%
4
Australia
126
2.9%
5
Argentina
108
2.4%
World distribution
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