Andover is a city in Clinton County, Iowa, United States.

[7] According to the United States Census Bureau, the city has a total area of 0.19 square miles (0.49 km2), all land.

There were 39 housing units at an average density of 217.7 per square mile (84.1/km2).

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

There were 40 housing units at an average density of 210.5 per square mile (81.3/km2).

18.4% of all households were made up of individuals, and 18.4% had someone living alone who was 65 years of age or older.

There were 40 housing units at an average density of 202.3 per square mile (78.1/km2).

30.8% of all households were made up of individuals, and 23.1% had someone living alone who was 65 years of age or older.

There were 8.0% of families and 3.3% of the population living below the poverty line, including 5.9% of under eighteens and none of those over 64.