What Dog Has The Strongest Bite?

“What dog has the strongest bite?” is a common question about dog-related injuries. This article will explain bite force, measured in pounds per square inch (psi), and then review the top dog breeds with the strongest bite forces.

Even minor dog bites can lead to serious and life-changing injuries, so it’s important to consider other factors as well. Chicago and Illinois laws around dog bites are also a crucial consideration when reviewing your legal options.

If you have suffered a bite injury, our Chicago dog bite lawyers are here to help. Call us 24/7 for a free consultation about your legal rights.  

Measurement and Meaning of Dog Bite Force

Dog bite force is measured in pounds per square inch (PSI). This illustrates the pressure exerted per square inch of surface area. 

PSI measurements are taken in laboratory settings using several methods. The first step is to induce a dog or cat to bite down on a transducer covered in rawhide. However, this may not always accurately demonstrate which breed has the most powerful bite force, as individual dogs may be more or less motivated by chewing on treats. 

Another method is to anesthetize the animal, then use electrical pulses to induce muscle contractions. This may be more objective, but it also does not represent what dogs naturally do in real life. 

Finally, computer models of a dog’s head, such as those that simulate the strength of its temporomandibular joint (TMJ) and jaws, can estimate the theoretical bite force. 

The pounds per square inch measurement is still a useful indicator of which breeds have the strongest dog bite force, especially when used as evidence in a personal injury lawsuit.  

Dog Breeds With The Strongest Bite Force

Due to differences in facial shape and muscle structure, various dog breeds exhibit varying bite strengths. All of the most powerful biters are large breeds, usually bred as guard dogs or war dogs. 

Kangal: Often Cited as #1 in Bite Force

The Kangal Dog is a Turkish breed originally bred to guard livestock. It is considered a national treasure of the Republic of Türkiye. While it generally does not exhibit aggressive behavior toward people, the Kangal is an excellent guard dog that will viciously defend its territory from predators. It has an impressive bite force of 743 PSI.

Cane Corso Bite Force

The Cane Corso comes from Italy, where it is one of the most popular dog breeds. These protective dogs were bred to guard farms, but Cane Corsos are now used as hunting, guardian, and law enforcement dogs in Italy. The Cane Corso’s 700 PSI bite strength gives it some of the strongest jaw strength in the dog world. Surprisingly, this particular breed has a bite force that rivals that of a lion. 

Mastiff Breeds (English, French, etc.) Bite Force

Mastiff is the collective name for several dog breeds, known for their impressive size and incredible jaw strength. The group includes the Tibetan Mastiff, English Mastiff, and French Mastiff, also known as the Dogue de Bordeaux. 

Of these, the Dogue de Bordeaux has the strongest bite at 556 PSI. Next comes the English Mastiff at 552 PSI, followed by the Tibetan Mastiff at 550 PSI. 

Rottweiler and American Bulldog Bite Force

The Rottweiler is an ancient breed originally used for herding cattle to market. While often thought of as a dangerous breed, it has a much lower PSI than mastiffs. The average dog from this breed has a pressure rating of 328 PSI. 

The American Bulldog’s bite force is slightly lower, at around 305 PSI. Due to their protective instincts, both of these breeds can be great family pets with proper training and socialization. 

Bite Force of Other Commonly Known Breeds

Other breeds are often considered to have the strongest bite force, but their jaw strength is actually lower than that of the breeds mentioned above. The American Pit Bull Terrier, bred specifically as a fighting dog, has a bite force of approximately 240 to 330 PSI. 

German Shepherds, which are commonly used as military and police dogs, have a bite force ranging from 238 to 305 PSI. Other dog breeds with powerful bites include the Doberman Pinscher, Siberian Husky, Belgian Malinois, and wolf hybrids. 

Is Bite Strength the Best Indicator of Danger?

While it is tempting to label a single dog breed as the most dangerous based on bite force, this does not necessarily reflect the risk of a particular breed or individual dog. An individual dog’s temperament, genetic predisposition to aggression, health, and environment will influence how likely they are to bite someone. 

It’s also important to note that even a dog that does not have the strongest bite force can still do significant damage to a person, especially if it latches onto a person’s face or hands. As such, bite force does not necessarily determine the severity of an injury.

Owner Responsibility, Training, and Socialization Matter Most

The bite risk of a domestic dog is strongly influenced by their training, socialization, and environment. A responsible dog owner will work hard to minimize risks, whether they have a German Shepherd or a Jack Russell Terrier.

Responsible dog ownership, especially for a large dog, involves properly containing the animal with secure fencing and keeping it on a leash when outside the home. This, along with proper training and good socialization, can significantly reduce bite-related incidents.  

How Jaw Mechanics, Tooth Shape, and Bite Type Affect Injury Severity

While bite force is one factor in determining the severity of a dog bite, other physical factors also influence the extent of the injury. One of these is the shape of the skull. Dogs with flatter faces can exert more pressure per square inch, a phenomenon known as brachycephalic leverage. Both Kangal dogs and Cane Corsos have relatively short snouts that let them bite down harder. 

Tooth sharpness can determine whether the victim suffers a puncture wound or a crush injury. Small, sharp teeth can penetrate the skin, causing serious bacterial infections, such as tetanus. A dog with blunt teeth can still cause damage, including bruising and fractures, but it may not break the skin.

Lastly, the dog’s behavior during the attack can significantly influence the severity of the injury. Some dogs will give one singular bite as a warning, which may not result in serious harm. This is common in herding dogs, such as Australian Shepherds, which nip at sheep to keep them in line. Multiple bites, such as in a mauling incident, may cause serious damage, especially as most damage is typically to the hands.

The most serious type of injury is when the dog latches on and refuses to let go, often shaking the victim back and forth. Police dogs, like German Shepherds, are trained to hold onto their victim and not let go. This can cause catastrophic damage to the skin, muscles, and ligaments. 

Statistics on Dog Bites and Severe Bite Incidents in the US & Chicago

Approximately 4.5 million dog bites occur in the United States each year. Of these, 885,000 victims seek medical care, and 370,000 need emergency room care. On average, 40 people are killed by dogs in the United States every year, though this number rose significantly during the COVID-19 pandemic. 

Chicago experiences thousands of bite incidents every year, largely due to its large concentration of dogs in the United States. For every 100 people in the city, there are 22.2 dogs, significantly increasing the risk of a bite incident. 

Reported Breed Involvement in Dog Attacks

The American Veterinary Medical Association lists the breeds most represented in biting incidents as German Shepherds, mixed-breed dogs, pit bulls, Rottweilers, and Jack Russell Terriers. Other common breeds include spaniels, collies, Chow Chows, Labrador Retrievers, and Saint Bernards.

Another study, published in Plastic and Reconstructive Surgery, determined that German Shepherds and pit bulls were involved in the most incidents..

However, not all attacks were equally dangerous. A report by Clinical Pediatrics found that half of bites requiring surgical intervention were from pit bull dogs, and they were 2.5 times more likely to bite in multiple locations. 

These studies did not explain whether the animal’s breed was known to the victim or whether this was a guess based on the dog’s appearance. That is essential context, as the general public may not be fully aware of what certain breeds look like.  

A report by Craniomaxillofacial Trauma & Reconstruction determined that 89.9% of pediatric attacks were by an animal known to the victim, and 53% of the bites were provoked. Understanding a dog’s body language and giving them space when necessary is a crucial way to avoid attacks, especially for children. 

In the above study, the most common biting breeds were Labrador Retrievers, Rottweilers, German Shepherds, and Golden Retrievers. This supports the evidence that most dog bites come from family pets, given that these are commonly recommended breeds for families with children. Appropriate supervision, handling, and socialization can significantly reduce the risk of dog bites. 

Pit Bull Attacks: Understanding the Statistics and Controversy

The American Veterinary Medical Association lists pit bulls as one of the breeds most commonly identified in biting incidents. This same report notes that this group of dogs is overrepresented in serious or fatal attacks. A study in the Annals of Surgery found that pit bull bites are more likely to result in catastrophic injuries when compared to other dog breeds.

However, it is essential to note that the American Pit Bull Terrier and other pit bull types are a highly popular breed, which may lead to them being overrepresented in bite statistics. Breeds like the Cane Corso and Dogue de Bordeaux are not as popular in the United States, so even though their bite force is stronger, they are not as likely to be represented in statistics.

Dog bites are typically self-reported by the victim, who may not know the breed of the animal. Due to media focus on pit bull attacks, they may assume that any aggressive dog must belong to this breed group. Even shelter staff often misidentify mixed breeds as pit bulls, which can lead to confusion. Due to the challenges of correctly identifying breeds, the Centers for Disease Control and Prevention stopped tracking breed-specific bite data in the late 1990s. 

The same AVMA report notes that pit bull dog owners may be more likely to be involved in criminal activity like dogfighting, meaning their canine companions are exposed to violence. All these may contribute to the belief that pit bulls are inherently dangerous and aggressive, despite having a lower bite force than other breeds. 

Illinois Dog Bite Law: Owner’s Strict Liability Explained

The Illinois Animal Control Act imposes strict liability on dog owners when their animal bites a person or another animal. This means that as long as the person was peaceably and lawfully occupying a space and did not antagonize the dog into biting, the owner is fully liable for any injuries or damages that may occur.

Under the Animal Control Act, a dog does not have to bite anyone to be considered dangerous. Instead, it defines this as an animal that is outside of its own property, is not controlled by an owner, and that behaves in a manner that a reasonable person would consider an imminent threat (510 ILCS §5/2.05a). This developed from the Illinois Supreme Court case Domm v. Hollenbeck, in which a dog bit a person despite having no known history of biting. 

However, Illinois has also banned the use of breed-specific legislation, ensuring that certain dog breeds are not automatically labeled as dangerous. Insurance companies are not allowed to raise premiums based on a dog’s breed, though they can raise premiums if a specific dog has been labeled dangerous. 

Chicago & Cook County Laws Regarding Specific Breeds or Dangerous Dogs

While Illinois has banned breed-specific legislation, Chicago does have specific ordinances regarding dangerous animals. A dangerous animal is any animal that bites, injures, or kills a person or another animal, or attempts to chase another person outside of their own property. The definition also includes any animal used in dogfighting or as a guard dog (7-12-020). 

Any animal that has caused the death or catastrophic injury of a person or other animal can be immediately euthanized (7-12-050(b)(1)). Bites must be reported as soon as possible to Animal Care and Control, which will then thoroughly investigate the case (7-12-050). 

If they deem the animal to be dangerous, it must be restrained at all times when outside the home, including wearing a muzzle. The owner must also warn the public with a sign and sterilize the animal if it is not already sterilized (7-12-050). 

All dogs must be restrained at all times, except when engaged in rescue or law enforcement work. If the property owner does not have a fence, they must keep their animal on a leash whenever they are outside of their home (7-12-030). 

Overall, Cook County follows these same rules, but it is more specific in defining what constitutes a dangerous dog. It notes that a dog should not be declared dangerous if it was defending itself, its owner, its property, or its offspring. Additionally, a dog cannot be labeled dangerous if the victim was tormenting or antagonizing the animal (Sec. 10-81). 

Legal Liability After an Attack by a Dog with High Bite Force

Liability is determined by the Animal Control Act’s strict liability statute rather than whether the dog has a strong bite force. The courts will examine whether the owner was violating any regulations, such as failing to restrain the dog with a leash, and whether the victim harassed the dog. The bite force is mainly used to argue for higher damages due to more severe injuries. 

Common Injuries Associated with Powerful Dog Bites

A severe dog bite can lead to life-threatening injuries. Common injuries include:

• Deep puncture wounds
• Severe lacerations
• Torn muscles and ligaments
• Nerve damage
• Bone fractures
• Severe blood loss
• Scarring or disfigurement

Steps to Take Immediately After Any Dog Attack in Chicago

The first step is to move away from the aggressive animal and ensure it is properly restrained before calling 911 and requesting police presence. Immediately go to the closest emergency room, such as Rush University Medical Center or Northwestern Memorial Hospital, and receive a full evaluation. You will likely need a tetanus shot, antibiotics, and stitches. 

You will need to report the bite to Chicago Animal Care and Control and the police. Identify the dog and its owner if possible. Ask about the dog’s vaccination status so that you can get immediate prophylactic rabies vaccines if necessary. 

Take photos of your injuries and the surrounding area, including whether the dog was restrained or on a leash. You should gather witness information so that your personal injury lawyer can follow up with them. 

Filing an Insurance Claim or Lawsuit for Dog Bites

In general, we will start by filing a claim against the homeowner’s or renter’s insurance. We will utilize evidence such as medical records, bite reports, and photographs to substantiate the damages, and then negotiate for the highest possible settlement. If this is not successful, we will file a lawsuit and present the evidence to a jury.

Why You Need an Experienced Chicago Dog Bite Attorney

By working with a personal injury attorney, you give yourself the best possible chance at recovering compensation. We will thoroughly investigate the incident, evaluate your damages based on your injuries, and apply all relevant laws and ordinances to your case. 

Once our investigation is complete, we will negotiate with insurance companies on your behalf, fighting for the highest possible compensation. 

How Our Law Firm Investigates and Proves Liability

We will gather comprehensive evidence to establish liability under the Animal Control Act. It’s important to demonstrate that your behavior before the attack did not contribute to the dog bite. This evidence can include:

• Bite reports
• Medical records
• Veterinary reports
• Witness statements
• Photos and videos
• Ordinance compliance checks
• Testimony from dog bite experts

Together, these help demonstrate how the attack occurred, who was liable, and the extent of your injuries. We’ll demonstrate that the animal’s behavior was unprovoked, as required by Illinois law. 

Compensation for Serious Dog Bite Injuries

Our Chicago personal injury firm will fight to ensure you receive the highest dog bite damages possible. These can include:

• Medical treatment
• Future medical needs
• Lost wages
• Disfigurement
• Physical pain
• Emotional trauma
• Loss of enjoyment of life

For wrongful death, we can also pursue funeral and burial expenses, loss of financial support, and grief. 

Frequently Asked Questions About Dog Bite Strength & Attacks in Chicago

Which Dog Breed Truly Has the Highest Estimated Bite Force?

The Kangal, a breed of dog from Turkey, is believed to have the highest bite force at 743 PSI. 

Are Dogs With Strong Bite Strength Automatically Deemed “Dangerous” Under Chicago Law?

No, dog breeds with powerful bite force are not automatically deemed dangerous. Illinois law prohibits municipalities from discriminating against specific breeds. To be labeled dangerous, a dog must have bitten someone without good cause, such as being attacked or in pain. 

What Are Chicago’s Specific Rules for Pit Bull Owners or Owners of Dogs Deemed Dangerous?

Chicago requires that a dog be deemed dangerous by experts, such as when it has bitten or chased someone. If an animal is considered dangerous, it may be euthanized or subject to restrictions like muzzling, containment, and sterilization. 

Is the Dog’s PSI Level Important Evidence in My Chicago Dog Bite Case?

The dog’s PSI level can help demonstrate the severity of your injuries. If you were bitten by one of the breeds with the strongest bite force, this can justify higher compensation because it indicates that you suffered major trauma. However, the projected bite force alone is not enough to demonstrate that you were seriously harmed. We will also use evidence, such as medical records, to evaluate your damages. 

What Should I Do Immediately After Bite Incidents Involving Potentially Aggressive Dog Behavior?

First, call the police and Animal Care and Control immediately to ensure the dog is restrained. Animal control will then begin evaluating whether the dog can be considered dangerous under the law. Obtain witness information, then proceed to the hospital to have your injuries assessed. You may need antibiotics, a rabies vaccine, and tetanus shots. Next, contact our Chicago dog bite attorneys to discuss your case.

Contact Our Chicago Dog Bite Law Firm for a Free Consultation

Dog bites can be traumatic and lead to lifelong complications. Our law firm has a 98% success rate and has worked with over 5,000 clients, recovering millions of dollars for those injured in personal accidents. We work on a contingency fee basis, meaning you owe us nothing unless we are able to secure compensation for you.To schedule a free consultation with a dog bite lawyer, please call us at (888) 424-5757 or complete our online contact form.

All content undergoes thorough legal review by experienced attorneys, including Jonathan Rosenfeld. With 25 years of experience in personal injury law and over 100 years of combined legal expertise within our team, we ensure that every article is legally accurate, compliant, and reflects current legal standards.