Types of Chipmunks in South Dakota
South Dakota hosts two main chipmunk species: the widespread least chipmunk and the eastern chipmunk in the far east. Start by checking the Black Hills for least chipmunks and the Missouri River region for easterns. This guide covers identification, habitat, and where to find them.
More Pages
More chipmunk pages for South Dakota
Start with the main page, then browse a few nearby follow-up pages in the same route cluster.
South Dakota hosts two main chipmunk species: the widespread least chipmunk and the eastern chipmunk in the far east. Start by checking the Black Hills for least chipmunks and the Missouri River region for easterns. This guide covers identification, habitat, and where to find them.
1. What are the different types of chipmunks found in South Dakota?
You'll most likely encounter two species: the least chipmunk (*Tamias minimus*) and the eastern chipmunk (*Tamias striatus*). The least chipmunk is by far the most common and widespread, found across the state including the Black Hills and prairies. The eastern chipmunk is limited to the eastern edge of the state, near the Minnesota border. No other chipmunk species are expected in South Dakota.
See ourChipmunks guidefor the next step.
2. How can you tell a least chipmunk apart from an eastern chipmunk?
The easiest field marks are size and stripes. The least chipmunk is smaller (about 7-9 inches including tail) and has a more slender build. Its stripes are thinner and more numerous, with a pale stripe through the center of the back. The eastern chipmunk is larger (9-11 inches), stockier, and has a distinct dark stripe down the center of the back flanked by two pale stripes. Easterns also have a longer, less hairy tail.
See ourstate wildlife pagefor the next step.
3. Where is the best place to see each type of chipmunk in South Dakota?
For least chipmunks, head to the Black Hills National Forest, Custer State Park, and Badlands National Park. They thrive in rocky outcrops, pine forests, and sagebrush. For eastern chipmunks, visit the wooded areas along the Big Sioux River in the east, like Newton Hills State Park or Palisades State Park. The Missouri River can be a transition zone where both species overlap.
See ourChipmunks typesfor the next step.
4. When is the best time of year to spot chipmunks in South Dakota?
Chipmunks are active from early spring (March) through late fall (October). They hibernate during winter, so peak activity is May through September. Early morning and late afternoon are the best times to see them foraging. In the heat of summer, they may be less active during midday.
See ourstate animal guidefor the next step.
5. What habitats do chipmunks prefer in South Dakota?
Least chipmunks are habitat generalists but favor open woodlands, rocky slopes, and sagebrush flats. Eastern chipmunks prefer deciduous forests with plenty of understory cover, like oak-hickory woodlands. Both species need nearby cover like logs, rocks, or leaf litter to escape predators.
6. How to identify chipmunks by their calls and behavior?
Chipmunks are vocal and often give sharp "chip" calls or trills when alarmed. The least chipmunk's call is a high-pitched, rapid series of chips, while the eastern chipmunk has a lower, slower "chuck-chuck" sound. Behaviorally, least chipmunks are more agile and climb trees frequently, whereas eastern chipmunks spend more time on the ground.