Andover is a town in Day County, South Dakota. It has a total area of 0.3 square miles, all of which is land.
Agriculture and related activities, and construction are the major commercial activities here. The closest hopital is the Avera St. Luke's, located about 30 miles away in Aberdeen. The cost of living here is 21.60% lower than the country average.
This place gets about 20 inches of rain annually. The number of days with measurable precipitation is 74. Snowfall is about 34 inches annually.