Mahaffey is the 4,472nd most popular last name (surname) in the United States; frequency is 0.003%; percentile is 61.902 [SourceCBN]
Mahaffey, Pennsylvania, United States [Borough]; population was 341 in 1990; housing units was 145 in 1990; location is 40°53'N 78°44'W; land area is 0.37 square miles (237 acres); water area is 0.00 square miles (3 acres); FIPS code is 46568 [SourceCBP]