Andover is a city in Anoka County, Minnesota, United States. The population was 30,598 at the 2010 census.
According to the United States Census Bureau, the city has a total area of 35.0 square miles (90.6 km²), of which, 34.1 square miles (88.3 km²) of it is land and 0.9 square miles (2.3 km²) of it (2.49%) is water. County Roads 9, 18, 78, and 116 are the main routes in the community. U.S. Route 10 is in close proximity to the city.
Crooked Lake is the only fully recreational lake in Andover. It is on the south border of the city with the majority of the lake actually in neighboring Coon Rapids.