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Duffy

1. Duffy is the 889th most popular last name (surname) in the United States; frequency is 0.013%; percentile is 41.972 [SourceCBN]
2. Duffy, Ohio, United States [Place] is in Monroe County; location is 39°38'38"N 80°52'20"W [SourceGSP]
3. Duffy, West Virginia, United States [Place] is in Lewis County; location is 38°47'27"N 80°26'41"W [SourceGSP]