Donnan is the 40,892nd most popular last name (surname) in the United States; frequency is 0.000%; percentile is 84.284 [SourceCBN]
Donnan, Iowa, United States [City]; population was 7 in 1990; housing units was 4 in 1990; location is 42°54'N 91°52'W; land area is 1.11 square miles (713 acres); FIPS code is 21765 [SourceCBP]