Donahue is a city in Scott County, Iowa, United States.

Elementary-aged students attend John Glenn Elementary, while older students travel to Eldridge to attend either North Scott Junior High School or North Scott High School.

[4] According to the United States Census Bureau, the city has a total area of 0.35 square miles (0.91 km2), all land.

There were 129 housing units at an average density of 363.7 per square mile (140.4/km2).

There were 127 housing units at an average density of 362.9 per square mile (140.1/km2).

The racial makeup of the city was 98.8% White, 0.3% African American, and 0.9% from two or more races.

16.1% of all households were made up of individuals, and 4.8% had someone living alone who was 65 years of age or older.

13.6% of all households were made up of individuals, and 4.9% had someone living alone who was 65 years of age or older.

About 5.1% of families and 11.0% of the population were below the poverty line, including 23.2% of those under the age of eighteen and 7.7% of those 65 or over.