Andover is a city located in Clinton County, Iowa. Andover has a 2026 population of 106. Andover is currently declining at a rate of -0.93% annually and its population has decreased by -1.85% since the most recent census, which recorded a population of 108 in 2020.
The median age in Andover is 33.5 years: 33.3 years for males, and 33.6 years for females. For every 100 females there are 74.6 males.