Maybe you’ve seen a little striped critter darting across your yard and wondered—was that a chipmunk or a ground squirrel? They’re both in the squirrel family, but honestly, they’re not the same—size, stripes, habits, and even their homes set them apart.
If you’re trying to figure out which one you’re looking at, you’re in the right place. I’ll walk you through some quick ways to tell them apart—think size, tail, markings, and where they hang out.
As you read, just keep an eye out for those little clues. You’ll start to pick up on which is which, and maybe even guess what they’re up to in your yard.
Are Ground Squirrels the Same as Chipmunks?
They might look related, but trust me, they’re not quite the same. You’ll spot the difference in their size, markings, and how they act.
Scientific Classification and Family Ties
Both chipmunks and ground squirrels belong to the squirrel family, Sciuridae. That’s why they share things like sharp teeth and strong back legs.
Chipmunks usually fall under the genus Tamias, with about 20–25 species. Ground squirrels spread out into other genera, like Spermophilus and Otospermophilus. So, they’re more like cousins than twins.
Want to ID them? Chipmunks are smaller—often less than a pound—and have those unmistakable stripes on their faces and backs. Ground squirrels? They’re bigger, usually missing those bold stripes, and there are a lot of different kinds, especially ones that love open spaces and burrows.
Common Confusions and Misidentifications
It’s easy to mix them up, especially if you just catch a glimpse. Both scurry around on the ground and munch on seeds, nuts, and bugs.
But look closer. Chipmunks have those bold face stripes and shorter, less fluffy tails. Ground squirrels? They’re chunkier, with fuller tails and softer coloring.
Behavior can clue you in, too. Chipmunks love to stuff their cheeks and zip into twisty burrows. Ground squirrels often stand up tall on their back legs, keeping an eye out for danger, and they like to gather in colonies out in the open.
If you’re still not sure, try comparing photos online, like this handy chipmunk vs ground squirrel guide: https://a-z-animals.com/animals/comparison/ground-squirrels-vs-chipmunks/.
Key Differences Between Ground Squirrels and Chipmunks
So, how do you really tell them apart? Check out their size, stripes, where they live, and what they’re doing.
Notice the tail, the kind of burrow, and whether you catch them cramming food into their cheeks.
Physical Characteristics: Stripes, Size, and Tails
Chipmunks—think eastern chipmunk or least chipmunk—are tiny, just 3–8 inches long and usually under a pound. They’ve got those sharp stripes: five dark-and-light lines on their backs and faces if you’re looking at an eastern chipmunk. The least chipmunk looks similar, just with narrower stripes.
Ground squirrels come in more shapes and sizes. The thirteen-lined ground squirrel, for example, is 7–10 inches and sports 13 thin stripes or dotted rows. California ground squirrels and their cousins get even bigger, up to 20 inches if you count the tail.
Their tails are a giveaway. Chipmunk tails? Thin, short, not very fluffy. Ground squirrels have bushier, longer tails—almost like a little tree squirrel—but they usually keep them low when running around.
And those cheek pouches? Chipmunks are pros at stuffing food in their cheeks. Some ground squirrels do it, but usually, they tuck food inside their mouths instead.
Habitat and Burrow Systems
Chipmunks mostly stick to woodlands, brushy spots, or near old logs. Eastern chipmunks dig wild burrow systems, with lots of rooms for sleeping and food storage.
Their burrows have a bunch of entrances and shallow tunnels that lead to hidden stashes. You’ll often find the holes near roots or rocks.
Ground squirrels prefer open grasslands, meadows, and even lawns in town. Thirteen-lined ground squirrels and prairie dogs dig deep, sprawling tunnels with shared spaces. California ground squirrels can make burrows so big they cause problems under buildings.
Their burrows usually house more than one animal and go deeper than chipmunk tunnels.
Diet and Feeding Habits
Chipmunks eat almost anything: seeds, nuts, berries, bugs, and sometimes small eggs. You’ll see them packing their cheeks to haul food back to their burrow.
They stash a lot of food for their short winter naps.
Ground squirrels eat a wider mix—grasses, seeds, roots, bugs, and young plants. Thirteen-lined ground squirrels munch on insects in summer, then switch to seeds in fall. California ground squirrels sometimes raid gardens or crops, so you might spot more damage from them.
Both eat whatever’s around, but chipmunks focus on storing small piles, while ground squirrels like to graze right by their burrows.
Behavior and Social Structure
Chipmunks usually stick to themselves. You’ll spot one fiercely guarding its burrow or food stash.
They move fast, darting around, and if something startles them, they just freeze. Chipmunks stay low to the ground and zip along quickly. Unlike tree squirrels, they don’t really bother with much climbing.
Ground squirrels? Their social lives are all over the place. Some, like prairie dogs, can be super social and live in big colonies.
Other ground squirrels prefer a quieter life—maybe semi-social, maybe just alone. Still, they’re generally less secretive than chipmunks.
Ground squirrels sometimes climb, but you’ll often see them standing upright, scanning for danger. In the more social species, you’ll hear loud alarm calls and see the group watching out together. It’s a big contrast to the quiet, solitary chipmunk.
