The Complete Illinois Gopher Control Guide

Understanding how to effectively control gophers is essential for protecting your property. Their extensive tunnel systems can cover hundreds of square feet, and a single gopher can create several mounds per day. While they may look harmless, gophers can cause significant damage to landscaping, irrigation systems, and even underground utility lines. These small burrowing rodents are common throughout Illinois, from the Chicago suburbs to the farmlands of central and southern Illinois. If you've noticed fresh mounds of soil in your lawn or garden, you might be dealing with pocket gophers.

A fresh mound of loose dirt in a green lawn
The short version

Gopher control in Illinois requires identifying active tunnels, using traps or bait, and sealing entry points.

  • Gophers are solitary and territorial; each tunnel system typically houses one gopher.
  • Peak activity in Illinois is spring and fall when soil moisture facilitates digging.
  • Trapping is the most effective and environmentally responsible method.
  • Professional removal costs $150-$700 depending on property size and infestation severity.
  • Prevention includes exclusion fencing, habitat modification, and regular monitoring.

Whether you have a small suburban yard or a large rural property, the information here will help you identify signs of gopher activity, choose the best control method, and decide when to call a professional. We focus on practical, evidence-based solutions that work in Illinois' varied climates and soil types. For Illinois homeowners, property managers, and landowners who are dealing with gopher damage or want to prevent it.

What to look for

Pocket gophers are solitary, territorial rodents that spend most of their lives underground. In Illinois, they are most active in spring and fall when soil moisture makes tunneling easier. Their digging can uproot plants, damage tree roots, and create unsightly mounds. They also gnaw on underground irrigation lines and cables, leading to costly repairs. Because each tunnel system typically houses only one gopher, an infestation of several mounds may actually be a single animal. However, if left unchecked, populations can grow, especially in favorable habitats like lawns, gardens, and agricultural fields.

  • Fresh horseshoe-shaped mounds of loose soil, often 6-12 inches in diameter, with a visible plug on one side.
  • Damaged or dying plants, shrubs, or trees due to root feeding.
  • Soft, spongy areas in the lawn from underground tunnels collapsing.
  • Exposed irrigation lines or cables with gnaw marks.
  • Unexplained depressions or sinkholes in the yard.
  • Feces pellets near tunnel openings (rarely seen above ground).
  • Increased bird or predator activity (hawks, owls) near your property.

Why it’s worth acting soon

  • Structural damage to lawns, gardens, and landscaping that requires expensive restoration.
  • Damage to underground utilities, including irrigation, drainage, and electrical lines.
  • Increased infestation as gophers breed (litters of 3-6 young, 2-3 times per year).
  • Attraction of secondary pests like snakes or rodents that use old tunnels.
6–12 inchesTypical gopher mound widthUniversity of California IPM
6–12 inches below groundGopher tunnel depthUniversity of California IPM
year-roundGophers are activeUniversity of California IPM
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Is it a gopher?

Treatment options and typical costs

Trapping

$150-$400

The most effective and environmentally friendly method. Two-pronged traps are placed in active tunnels to kill gophers quickly. Requires correct placement and checking every 1-2 days.

Time
1-3 weeks for full removal
Best for
Homeowners who want minimal chemical use and high success rate.

Baiting

$200-$500

Toxic baits (e.g., a toxic baits) placed in tunnels. Can be effective but poses risks to pets, children, and non-target wildlife. Not recommended near edible gardens.

Time
2-4 weeks
Best for
Large properties with no pets or children, or as a last resort.

Exclusion & Habitat Modification

$300-$700

Installing underground fencing (hardware cloth or gravel) around gardens and foundations. Also includes reducing irrigation to discourage gophers from tunneling.

Time
Permanent with maintenance
Best for
Prevention and long-term management in high-risk areas.

Professional Integrated Pest Management (IPM)

$150-$700

Combines trapping, baiting (if necessary), habitat modification, and monitoring.

Time
Ongoing as needed
Best for
Property managers and homeowners with persistent or large-scale infestations.

Prices are typical published ranges. Ask what’s included before you compare quotes.

A young plant sitting in disturbed soil in a garden bed
Gophers eat roots from below. Plants that wilt and lift out easily are a classic sign.

Gopher Biology and Behavior in Illinois.

For instance, trapping is most successful in spring and fall when gophers are expanding their tunnels. Understanding these behaviors helps in choosing effective control methods. Their lips close behind their incisors, allowing them to dig without swallowing dirt. They have fur-lined cheek pouches used to carry food to underground caches. Their diet consists of roots, tubers, and occasionally above-ground vegetation. Gophers do not hibernate; they remain active year-round. During dry summer months, they may tunnel deeper and become less active. They are most active in spring and fall when the soil is moist and easier to dig. They are solitary and territorial, each occupying its own burrow system that can span 200 to 2,000 square feet. Pocket gophers (Geomys bursarius) are the most common species in Illinois.

How to Identify Active Gopher Tunnels.

In Illinois, gopher activity can be year-round, but spring and fall are peak times for trap success. Professional technicians use these techniques to ensure high catch rates. Do not place traps in mounds; instead, dig down to the main tunnel and set traps there. Active tunnels will feel soft and give way easily. Another method is to probe the soil with a metal rod to find the main tunnel, which is typically 6-12 inches deep and runs straight. To determine if a tunnel is active, collapse a section of the mound and check if it is repaired within 24-48 hours. Fresh mounds have a distinct horseshoe shape with a plug of soil on one side. To control gophers, you must locate active tunnels.

A pocket gopher peeking out of a fresh dirt mound near garden plants
Pocket gophers are stocky, with cheek pouches and long front claws. Each one lives alone.

Integrated Pest Management (IPM) for Gophers.

In Illinois, IPM is recommended by extension services and professional pest control companies because it minimizes environmental impact and provides sustainable results. Regular monitoring ensures that new infestations are caught early. Habitat modification—such as reducing irrigation, planting gopher-resistant vegetation, and installing exclusion fencing—reduces the property's attractiveness to gophers. If trapping is not feasible, baiting may be used selectively, but only in areas away from pets and children. Trapping is the core of IPM because it targets individual animals without introducing toxins into the environment. For gophers, it begins with identifying the species and assessing the extent of damage. IPM is a holistic approach that combines multiple strategies for long-term control.

What to check before you hire gopher control.

In Illinois, count the active mounds during your walk-through — that number, not a national average, is what should drive a treatment plan. In Illinois, because each gopher is solitary, a yard with several fresh mounds usually means several animals, each with its own network. In Illinois, tunnel systems typically run 6 to 12 inches below the surface, with deeper nesting and food-storage chambers. In Illinois, state wildlife agencies put a single pocket gopher at roughly a ton of soil moved per year, and mounds are the first thing most people notice.

What affects the price

  • Property size and acreage (larger lots require more labor).
  • Severity of infestation (number of active mounds and tunnel systems).
  • Accessibility of gopher tunnels (e.g., under structures or in rocky soil).
  • Treatment method (trapping vs. baiting vs. exclusion).
  • Regional labor rates in Illinois (Chicago metro vs. rural areas).
  • Number of follow-up visits needed.
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What is your biggest challenge with gopher control?

When to call for help

If you have multiple active mounds, damage to expensive landscaping or irrigation, or if DIY trapping has failed after two weeks, it's time to call a professional. Gophers can be frustratingly clever, and experienced technicians use proven techniques to eliminate them quickly.

What you can do yourself

DIY gopher control is possible for small infestations if you use the right traps and place them correctly. However, many homeowners struggle with identifying active tunnels, choosing the right bait, or avoiding harm to pets. Professional exterminators have specialized tools, knowledge of local gopher behavior, and access to restricted-use products. They also save you time and effort. For most people, the cost of professional service ($150-$700) is worth the peace of mind and results that vary by property and provider. Plus, professionals can help with prevention to avoid future problems.

Where you live matters

Illinois spans USDA hardiness zones 5a to 6b, with significant climate variation from the northern Chicago area to the southern tip near Cairo. Northern Illinois experiences colder winters with deeper frost lines, which can push gophers to dig deeper tunnels. In central Illinois, the fertile prairie soils are ideal for gopher tunneling, making agricultural areas particularly susceptible. Southern Illinois has milder winters and higher rainfall, leading to year-round gopher activity. Urban areas like Chicago, Aurora, and Rockford see gopher problems in suburban lawns and golf courses, while rural regions face challenges in crop fields and pastures. The Illinois Department of Natural Resources notes that gopher populations fluctuate with food availability and soil conditions. Professional control services adapt their methods to these regional differences, ensuring effective removal across the state.

Gopher tips from the experts

Fresh mounds tell the story

Around your home, fresh, dark soil means a gopher is active now. Look at the mound shape, the plugged hole and any wilting plants before deciding what you have.

Gopher, mole or ground squirrel?

Gopher mounds are crescent or horseshoe shaped, with a plugged hole off to one side. Mole mounds are rounder, often with raised ridges nearby. Ground squirrel holes stay open, with no mound.

UC IPM: pocket gophers

What they damage

Gophers chew roots, irrigation lines and sometimes buried cables. Fresh, moist soil means they’re active now. Keep watching after treatment, since a quiet yard doesn’t always mean they’re gone.

Utah State University Extension: pocket gophers

Based on guidance from university extension services.

How we check our sources

Simple ways to keep gophers away

  • Install underground barriers (1/2-inch hardware cloth or gravel) around gardens and foundations, buried at least 18 inches deep.
  • Reduce soil moisture by fixing leaky irrigation and improving drainage.
  • Keep grass mowed and vegetation trimmed to reduce cover.
  • Use gopher-resistant plants like daffodils, marigolds, or lavender in high-risk areas.
  • Remove food sources like fallen fruit, nuts, or birdseed.
  • Regularly inspect your property for new mounds and act quickly.
  • Consider installing ultrasonic devices or vibration stakes (though evidence of effectiveness is mixed).
A printed quote, coffee mug and glasses on a kitchen table
Ask what the quote covers if another gopher moves in after the first is caught.

Did you know?

Gophers have fur-lined external cheek pouches used to carry food—think of them as built-in grocery bags.

Their lips close behind their teeth, allowing them to dig with their incisors without swallowing dirt.

A single gopher can move roughly a ton of soil per year in its tunneling activities.

Questions people ask

How do I know if I have gophers or moles?

Gophers create horseshoe-shaped mounds with a soil plug, while moles make volcano-shaped mounds. Gophers eat roots and plants; moles eat insects. Gopher tunnels are deeper and have visible soil plugs.

Are gophers dangerous to pets or children?

Gophers themselves are not aggressive, but their tunnels can cause tripping hazards. Bait used for control can be toxic if ingested, so trapping is safer around pets and kids.

What is the best time of year to trap gophers in Illinois?

Spring and fall, when soil moisture is high and gophers are actively expanding tunnels. However, trapping can be effective year-round if tunnels are active.

How many gophers are typically in one tunnel system?

Usually one. Gophers are solitary and territorial. Each tunnel system is occupied by a single gopher except during mating or when raising young.

Will gophers eventually leave on their own?

No. Once established, they will stay as long as food is available. Populations can grow and cause increasing damage. Active control is necessary.

Can I use poison bait to control gophers?

It is possible but not recommended due to risks to pets, wildlife, and children. Trapping is safer and more effective when done correctly.

How long does a professional gopher control service take?

Most infestations are resolved within 1-3 weeks with multiple visits. Complex cases may take longer. Your technician will provide a timeline after inspection.

Related guides

Sources (5)

The facts in this article come from the public sources listed above. Every home is different, so ask the company you talk to about pricing and what’s included. Published by Gopher Exterminator · Updated September 11, 2026 · How we write these guides

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