Audubon County Airport, formerly Audubon Municipal Airport, is a public airport located one mile southeast of the central business district of Audubon, a city in Audubon County, Iowa, United States. It is owned by the Audubon County Airport Authority.
Although most U.S. airports use the same three-letter location identifier for the FAA and IATA, Audubon County Airport is assigned ADU by the FAA but has no designation from the IATA.
