[2] The county was named after John James Audubon, the naturalist and artist.

[4] The current Audubon County Court House was opened in 1940.

94.87% were non-Hispanic White, 0.30% were Black, 1.52% were Hispanic, 0.09% were Native American, 0.09% were Asian, 0.02% were Native Hawaiian or Pacific Islander and 3.12% were some other race or more than one race.

[13] As of the census[14] of 2000, there were 6,830 people, 2,773 households, and 1,927 families residing in the county.

28.20% of all households were made up of individuals, and 16.70% had someone living alone who was 65 years of age or older.

Audubon County is divided into twelve townships: The population ranking of the following table is based on the 2020 census of Audubon County.