The terrain of Kingsbury County consists of low rolling hills.

The central and east portions of the county hold numerous lakes and ponds.

[4] The terrain generally slopes to the southwest, and the highest point is near the midpoint of the east boundary line, at 1,857 ft (566 m) ASL.

In 2010 it had less than half the population of its peak in 1930, before the Dust Bowl and the Great Depression.

In terms of European ancestry, 42.8% were German, 25.5% were Norwegian, 10.9% were Danish, 9.6% were Irish, 7.2% were English, and 3.5% were American.

In only two national elections since 1932 has the county selected the Democratic Party candidate (as of 2024).