How to Get Rid of Chipmunks in the Yard (2026 Guide)

To get rid of chipmunks in the yard, work in this order: confirm the clean 2-inch holes are chipmunk burrows, cut off birdseed and cover, block digging around patios and walls with buried mesh, and trap along active runs with prebaited rat-size snap or live-catch traps. Check state rules before moving any live animal. Repellents give partial help at best, and no home poison bait carries a chipmunk label. That sequence mirrors the plan extension services repeat most, from UGA Extension to Missouri and Purdue.

What do chipmunk burrows look like, and when do they matter?

Start with the animal. The Eastern chipmunk is the striped 8 to 10 inch ground dweller of the eastern states, reddish brown with three dark back stripes, often spotted sprinting with its tail straight up. Georgia biologists describe it as fast, alert and fond of woods edges, which explains why yards backing onto trees host the most animals.

The burrow gives itself away by tidiness. Openings run 2 to 3 inches across, drop almost straight down, and sit cut neatly through turf with no excavated soil piled beside them, according to Missouri researchers. Expect them at the foot of stumps and logs, beside large stones and walls, and under patios, steps and foundations. Below, a main tunnel runs 20 to 30 feet with a nest chamber, food stores, side pockets and separate escape tunnels. One system can pass 30 feet, so a single hole in the lawn rarely tells the whole story.

A neat hole about two fingers wide with no dirt pile points to chipmunks. Mounds or ridges point elsewhere.

Above ground, the menu is broad: acorns, grain, sunflower and birdseed, mushrooms, caterpillars and, in season, your flower bulbs, seeds and garden fruit. Purdue notes they gnaw into bags of dog food and birdseed and strip bark from shrubs. Populations stay small because chipmunks defend territories, though a single urban yard can hold up to 20 where food is rich.

Damage falls into two buckets. Tunneling can undermine concrete patios, steps, retaining walls and sidewalks as soil washes out of voids. A humane group adds useful balance: it knows of no documented case of a burrow alone causing structural failure. So watch slabs for settling or cracking, act where hardscape is at risk, and tolerate the far hole under the woodpile. Confusion wastes effort here. Raised ridges belong to moles, surface runways to voles, fan mounds with side plugs to gophers, and tree-top nests to squirrels. Each digger needs different tools, and the chipmunk hub collects the rodent cousins in one place.

How do you make the yard less inviting?

Hungry chipmunks commute to food, so the feeder is the first thing to fix. Switch to spill-proof or tray feeders that catch falling seed, sweep what hits the ground, and move feeders beyond easy reach of cover. The humane guide adds two sharper moves: pick up spilled seed daily and change seed type if one mix draws crowds. Lock bulk seed and pet food in sealed metal or heavy plastic bins, since Purdue reports chipmunks gnaw straight through bags.

Next, break the shelter chain. Do not stack firewood against the house. Thin ground cover, shrubs and debris so no continuous green bridge runs from the woods to the foundation, and remove or mortar loose stone walls near structures. Wildlife damage specialists at ICWDM list exactly these edits, plus a plant-free gravel border around the area of concern. Cover hides burrow mouths from you while shielding chipmunks from hawks and owls. Open ground reverses that deal.

Stone piles, stumps and wall footings are classic burrow sites. Clearing cover exposes new holes early.

Close the house itself. Seal gaps where gas lines, cables, vents and pipes enter with caulk or quarter-inch welded wire, and screen low dryer vents. Mesh guards over gutter downspouts stop chipmunks from climbing into roof channels, a UGA-recommended fix that also saves wet-season water damage. None of this kills anything. It lowers the carrying capacity of the yard until most animals forage elsewhere.

What protects bulbs, beds and foundations?

Exclusion beats chemistry for chipmunks, and the key device is the L-footer: hardware cloth bent into an L, sunk upright against a foundation, porch skirt, sidewalk edge or retaining wall, with the foot running outward underground before you backfill. Digging animals hit the horizontal leg and give up. The humane guide prescribes this footer for foundations, sidewalks, porches and retaining walls alike. Whole-yard barriers cost too much, so spend mesh where settling would hurt.

Bulbs get the same treatment on a smaller scale. Drape quarter-inch hardware cloth over each planting, bury it under soil, and run it at least a foot past every margin of the bed. All three extension sources (Missouri, Purdue, ICWDM) agree on that recipe. Bulb cages and one-inch screen covers work the same way while letting shoots through. For spring color with less risk, plant daffodils and ornamental onion, which wildlife usually leaves alone. New raised beds earn a mesh floor before the soil goes in, closing the tunnel route from below.

Repellents deserve blunt limits. No product is registered for chipmunks, and frightening devices have no proven effect, per UGA and ICWDM. Taste coatings with capsaicin, Bitrex, Thiram or fatty-acid soaps, plus fox or coyote urine barriers, trim damage on sprayed plants only, fade fast, and need repeat coats after rain. Mothballs sit outside this scheme entirely: using them against mammals breaks the product label and the law. The table below ranks every option by evidence.

Method	What it takes	Honest verdict
Habitat cleanup	Feeder control, sealed food, cleared cover	Free, slow, removes the reason to stay
L-footer and mesh	Hardware cloth, digging, backfill	Best lasting fix for slabs, walls and beds
Live-catch trapping	Wire traps, bait, daily checks	Works where legal; release rules apply
Snap trapping	Rat-size traps, bird guards	Fast and final; keep from kids, pets, birds
Taste and odor repellents	Repeat sprays, rotation	Partial and brief; never the whole plan
Poison or mothball home use	None recommended	No chipmunk label; misuse risks fines, pets and odor

How do you trap chipmunks within the law?

Trapping is the most practical removal method in home yards, and every cited extension service lands there. Two trap styles qualify: live-catch wire-mesh boxes and common rat-size snap traps. Bait both with peanut butter, plain or mixed with oats, plus nut meats, sunflower seeds, raisins or breakfast cereal grains. Smear soft bait into the trigger so light thieves must work for it.

Prebaiting decides success. That word means feeding from unset traps for two to three days, sometimes with live-trap doors wired open, until chipmunks treat the metal box as a safe food stop. Then set the mechanism. Set along runs, at burrow mouths and wherever you see animals feeding, snug against the ground so the trap cannot wobble and spook the visitor. Snap sets go perpendicular to the path, or in pairs with triggers facing outward, hair-trigger sensitive. Anchor every trap so a catch cannot drag it off.

Cheek pouches ferry seed to burrow stores, which is one reason scattered bait rarely solves the problem.

Shield the sets. Slide snap traps under boxes with two-inch end holes, or inside rat-size bait stations, so songbirds cannot hop in while chipmunks still can. Conceal traps against walls with a leaning board. Check every trap daily, at dusk at the latest, refresh bait, and move any silent set after two or three days. Young animals too light for rat triggers may need mouse-size traps before they grow wise.

Count noses, then triple the traps

Most yards under-trap. Wildlife damage guidance offers a concrete rule: scan the site, count the chipmunks you see, and set three times that many traps, since neighbors keep arriving from surrounding cover. One trap per hole loses to an animal that owns escape tunnels. A full line of prebaited traps along every active run compresses a weeks-long campaign into days, and follow-up sets catch the next wave of prospectors. That arithmetic is the difference between trapping and trapping effectively.

Relocation is where good intentions meet the rulebook. Chipmunks count as protected non-game wildlife in states such as Missouri and Georgia, controllable when they damage property but never movable at will. Missouri guidance says release at least a mile out; Purdue says several miles with the receiving landowner’s written permission. UGA warns plainly that dumping animals into strange ground kills most of them, that trespass releases invite charges, and that public lands are off limits in most states. So read your state and city rules before the first set, and default to on-site release or humane dispatch where the law allows. Live traps demand the same daily-check discipline, gloves for handling, and no bare-hand contact.

Skip the poison aisle. Purdue states no toxic bait is sold to homeowners for chipmunks, and Missouri agrees that rat and mouse baits are neither labeled nor recommended for them. Hoarding makes a bad idea worse: pouched bait rides to the burrow instead of working in the open, so colonies persist while pets, owls and children inherit the risk. Fumigants and gas cartridges carry their own label walls and fire hazards, and never belong near buildings. Animals that die inside walls or under slabs decay into an odor problem no spray fixes.

Know when to hand off. Undermined retaining walls, slopes, septic ground or sports turf justify a licensed operator, as do yards where kids, pets or protected birds rule out snap traps. Two correct weeks with prebaited sets and zero catches means the diagnosis, not the effort, needs review. Compare notes with fellow digger guides for groundhogs and gophers, browse the rodent group and all pests pages, and open the pro finder when the burrow system outgrows the trap line.

How to: How to Get Rid of Chipmunks in the Yard (2026 Guide)

Confirm chipmunks, starve them out, block the digging, then trap the holdouts.

You'll need

• rat-size snap traps or live-catch wire traps
• peanut butter and oats
• quarter-inch hardware cloth
• caulk
• gravel
• rodent-proof seed bins

Tools

• gloves
• shovel
• wire snips

1. Confirm chipmunk sign

   Look for clean 2 to 3 inch holes with no dirt pile near patios, steps, walls or stumps. Striped 8 to 10 inch animals running tail-up at midday confirm the diagnosis.

2. Cut food and cover

   Switch to spill-proof feeders, sweep spilled seed, lock seed and pet food in sealed bins, move firewood off buildings, and break up plant cover linking woods to the foundation.

3. Exclude beds and structures

   Lay quarter-inch hardware cloth over bulb plantings with a foot of margin, and set an L-footer of mesh against patios, porches and retaining walls.

4. Prebait, then set traps

   Feed unset traps for 2 to 3 days along runs and burrow mouths, then set them perpendicular to travel or in pairs with triggers facing out. Shield each set from birds.

5. Check, move or escalate

   Check traps daily, move silent sets after 2 to 3 days, and verify local rules before relocating anything alive. Call a pro if slabs settle or trapping stalls.

Frequently asked questions

Will mothballs or ultrasonic stakes drive chipmunks away?

No. No frightening device has proven effective against chipmunks, and mothballs are not labeled for mammals, so scattering them for chipmunks violates pesticide law. Spend the effort on exclusion and trapping instead.

Can I relocate a trapped chipmunk to a park?

Check local rules first. Release on public land is illegal in most states, you need the landowner's written permission on private ground, and biologists warn that dumped animals die at high rates. Missouri guidance suggests at least a mile; Purdue suggests several miles with permission.

Do cayenne, coffee grounds or peppermint keep chipmunks off bulbs?

Not reliably. No repellent is registered for chipmunks. Taste repellents with capsaicin, Bitrex or Thiram give partial, short protection and need repeat applications. Mesh over the planting beats every spray.

Can chipmunk burrows crack my patio or steps?

They can undermine slabs, steps, retaining walls and sidewalks by removing soil beneath them, so watch for settling or cracking. One humane group notes no documented case of a burrow alone causing structural failure, which means monitoring plus exclusion usually suffices.

When should I call a professional for chipmunks?

Call when burrows threaten a retaining wall, foundation or slope, when children, pets or songbirds make snap traps unsafe, or when two weeks of correct prebaiting and trapping catch nothing and the diagnosis needs a second eye.

Useful links (5)

1. UGA Extension Circular 910: Chipmunk Control (2022)— fieldreport.caes.uga.edu
2. Humane World for Animals: What to Do About Chipmunks— humaneworld.org
3. ICWDM: Chipmunk Damage Prevention and Control Methods— icwdm.org
4. MU Extension G9527: Controlling Nuisance Chipmunks— extension.missouri.edu
5. Purdue Extension ADM-2: Chipmunks— extension.entm.purdue.edu

Photo credits

Thank you to Tyler Savitski, LOOKSQUARE, Scornwel and Rhododendrites for sharing these beautiful photographs and helping bring this guide to life.

Wikimedia Commons · CC BY-SA 4.0 · CC BY 4.0