Bankston is a city in Dubuque County, Iowa, United States.

[3] According to the United States Census Bureau, the city has a total area of 0.29 square miles (0.75 km2), all land.

There were 10 housing units at an average density of 36.8 per square mile (14.2/km2).

Hispanic or Latino persons of any race comprised 0.0% of the population.

There were 9 housing units at an average density of 31.0 per square mile (12.0/km2).

33.3% of all households were made up of individuals, and 22.2% had someone living alone who was 65 years of age or older.

There were 12 housing units at an average density of 43.6 per square mile (16.8/km2).

25.0% of all households were made up of individuals, and 8.3% had someone living alone who was 65 years of age or older.

There were 30.0% of families and 41.4% of the population living below the poverty line, including 45.5% of under eighteens and none of those over 64.