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Tiernan

1. Tiernan is the 14,734th most popular last name (surname) in the United States; frequency is 0.001%; percentile is 75.101 [SourceCBN]
2. Tiernan, Oregon, United States [Place] is in Lane County; location is 44°0'58"N 123°56'20"W; was named in year 1968 [SourceGSP]