Main country
France
16,941 people
92.3% of total
Surname
Riou
18,354 worldwide · 57 countries
18,354
Total population
57
Countries
1 in every 441,321
Frequency
Rarity
Moderate
Dispersion
Global
Top countries
1
France
16,941
92.3%
2
Canada
348
1.9%
3
Algeria
295
1.6%
4
United States
140
0.8%
5
Morocco
136
0.7%
World distribution
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