Main country
United States
3,607 people
51.1% of total
Surname
Tiernan
7,055 worldwide · 32 countries
7,055
Total population
32
Countries
1 in every 1,148,122
Frequency
Rarity
Rare
Dispersion
Regional
Top countries
1
United States
3,607
51.1%
2
Ireland
1,626
23%
3
England
1,101
15.6%
4
Australia
333
4.7%
5
Canada
151
2.1%
World distribution
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