South Dakota has no plains pocket mouse records from 2000 to 2026. The mouse is nocturnal, spends the day in its burrow, and rides out winter in bouts of torpor below ground, so it’s rarely seen outside a trap, and a gap like this says more about how seldom anyone surveys for it than about whether it’s still here. It digs its living and needs loose, sandy soil, which the glaciated country farther east and north offers far less of.
Status in South Dakota
NatureServe ranks the plains pocket mouse S5, secure, in South Dakota, one of the few states at this end of its range where it earns that grade. It’s native here, and the south-central counties give it room: wide, dry, lightly developed country with plenty of diggable ground.




