Andover
- County:
- Clinton County
- County Seat:
- No
- Area (mi²):
- 0.179
- State:
- Iowa
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.