Chipmunks eat a flexible mix of plant foods and small animal foods. Their diet changes easily with the season and location.
You will usually see them going after nuts, seeds, fruits, grains, insects, and fungi. They stash extra food in burrows for later use.
Chipmunks favor calorie-rich foods like acorns, sunflower seeds, and other nuts. They also take advantage of berries, grains, and occasional insects when available.

Foods Chipmunks Eat Most Often

Chipmunks act as opportunistic eaters. They love foods that are easy to gather, easy to store, and packed with energy.
Their favorites usually fall into a few reliable categories. These foods show up in forests, parks, and backyards.
Nuts And Acorns
Chipmunks love acorns, walnuts, hickory nuts, beechnuts, and pine nuts. These foods are rich in fats and calories, which help them build up stores before cold weather.
Chipmunks crack and cache nuts for winter use.
Seeds And Grains
Chipmunks eat sunflower seeds and black oil sunflower seeds most often. They also take corn, oats, or other grains from feeders and gardens.
Because seeds are small and portable, chipmunks can carry many of them in their cheek pouches.
Fruits And Berries
Blueberries and blackberries attract chipmunks when they ripen in summer. Chipmunks eat other fruits when they find them.
Juicy foods add moisture and quick energy to their diet. In the wild, berries provide vitamins while they forage near shrubs and forest edges.
Insects And Other Protein Sources
Chipmunks sometimes eat insects for extra protein. Beetles, caterpillars, crickets, and other small prey support growth and reproduction when plant foods are less abundant.
They may also eat other small protein sources when the opportunity appears.
How Feeding Changes Through The Seasons

Chipmunks change their food choices with the calendar. They shift from fresh, tender foods in warmer months to high-energy stored foods when temperatures drop.
Spring And Summer Foraging
In spring and summer, chipmunks eat more tender greens, berries, fruits, and insects. These foods help them recover after winter and support breeding and raising young.
Warm weather brings more active foraging throughout the day.
Fall Food Caching
In fall, chipmunks focus on collecting acorns, nuts, seeds, and grains. They use their cheek pouches to haul food back to burrows.
They create hidden caches for later use.
Winter Survival From Stored Food
During winter, chipmunks rely on the food they stored earlier. They wake periodically and eat from their caches.
Stored food includes seeds, nuts, and other dry items that still hold plenty of energy.
Where Chipmunks Find Food Around Homes And Gardens

Around homes, chipmunks look for easy meals in places where seeds, fruit, and crops collect. You may notice them visiting feeders, raiding gardens, or using nearby trees and brush as safe foraging cover.
Bird Feeders And Seed Sources
Bird feeders attract chipmunks, especially when they contain sunflower seeds, cracked corn, or mixed seed. Chipmunks gather spilled seed below feeders, which makes those areas especially attractive.
If you keep feeders outside, chipmunks may treat them like a regular food stop.
Garden Crops And Backyard Plants
In gardens, chipmunks may eat berries, fruits, young shoots, and even tender vegetables. They are especially drawn to plants that offer quick calories or moisture.
Fallen produce and ripe fruit on the ground can be just as tempting as what is still on the plant.
Woodlands, Burrows, And Natural Foraging Areas
Chipmunks find acorns, beechnuts, pine nuts, fungi, and insect prey in woodlands.
They also search for food near logs, roots, and leaf litter, where they often find hidden items.
They store much of what they collect in their burrows for later use.
