Main country
United States
177,823 people
61.1% of total
Surname
Duncan
290,943 worldwide · 166 countries
290,943
Total population
166
Countries
1 in every 27,841
Frequency
Rarity
Common
Dispersion
Global
Top countries
1
United States
177,823
61.1%
2
England
19,763
6.8%
3
Australia
18,611
6.4%
4
Scotland
17,156
5.9%
5
Canada
14,884
5.1%
World distribution
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