Most people assume animal attacks are rare, but in reality, millions of Americans suffer bites each year—many requiring emergency medical attention.
Whether from a household pet or an unexpected encounter in the wild, understanding which animals bite the most, why they bite, and the injuries they cause is critical for personal safety.
At The Schiller Kessler Group, we analyzed data on animal attacks to determine which animals are most likely to bite, the common risk factors, and how to reduce the likelihood of an encounter. From dog bites that require hospitalization to venomous snake attacks, the numbers tell an alarming story.
Why Do Animals Bite? The Science Behind Attacks
While some bites occur unpredictably, most animal attacks happen due to defensive behavior, stress, or territorial instincts.
- Dogs: Often bite due to fear, pain, territorial defense, or being startled. They may be man’s best friend, but they are the most likely to attack you.
- Cats: May bite when overstimulated, feeling threatened, or asserting dominance.
- Snakes: Bite primarily in self-defense, usually after being stepped on or provoked.
Understanding these behavioral triggers is key to preventing attacks, but which animals are responsible for the most bites each year?
Pet Ownership and Bite Risks in the U.S.
Pet ownership is common in American households, and while most pets are well-behaved, the likelihood of a bite increases with exposure.
- 65.1 million households own at least one dog.
- 46.5 million households own at least one cat.
- 800,000 households own pet snakes.
Dogs: The Most Common Cause of Bites
With 65.1 million households owning a dog, it’s no surprise that dogs account for the majority of reported animal bites.
- 4.5 million dog bites occur annually in the United States.
- 800,000 people require medical attention each year due to dog bites.
- 30–50 people die annually from dog attacks, with 81 fatalities recorded in 2021.
- Households with two or more dogs are five times more likely to experience a bite.
Who Is Most at Risk?
- Children under 14 are the most common victims of dog bites.
- Ages 5–9: The highest risk group
- Ages 0–4: The second highest
- Ages 10–14: The third highest
- Men (52.6%) are bitten slightly more often than women (47.4%).
Common Dog Bite Injuries
- Puncture wounds, lacerations, fractures, and contusions are the most frequent injuries.
- Most bites occur on the arms and hands, followed by the head/neck and legs/feet.
- Infection risks include rabies, tetanus, and sepsis, requiring immediate medical attention.
Cats: Smaller but Surprisingly Dangerous
While cats are less likely to attack than dogs, their sharp teeth and deep bites make their wounds more prone to infection.
- 400,000 cat bites occur annually in the U.S.
- 5–15% of all animal bites reported in humans are from cats.
- 66,000 emergency department visits result from cat bites each year.
- Women are more likely to be bitten by cats than men or children.
Common Cat Bite Injuries
- Lacerations, contusions, and puncture wounds
- Most bites occur on the face, neck, and hands
- Infection risk is twice as high as dog bites due to deeper penetration
Unlike dogs, cats rarely attack unprovoked. Bites typically occur during play, overstimulation, or as a defensive reaction.
Snakes: The Stealth Attackers
Snakes bite far less frequently than dogs or cats, but venomous species pose serious risks.
- 45,000 snake bites occur annually in the U.S.
- 7,000–8,000 bites involve venomous species.
- 5 people die each year due to venomous snake bites.
- 72% of snake bite victims are male.
Common Snake Bite Injuries
- Non-venomous bites cause swelling, redness, and localized pain.
- Venomous bites can result in severe tissue damage, paralysis, and organ failure if untreated.
Most snakebites happen when humans accidentally step on or disturb a snake.
Top 10 States Where You’re Most Likely to Be Attacked by a Dog
Dog attacks are more common in certain states due to population density, dog ownership rates, and local enforcement of leash laws. According to recent data, the states with the highest number of reported dog bite incidents are:
- Ohio
- Illinois
- Michigan
- New York
- Florida
- Pennsylvania
- Georgia
- North Carolina
- Texas
- California
Top 10 Dog-Owning Cities in the United States
Understanding which cities have the highest number of dog owners provides valuable insights into where dog-related incidents, including bites, may be more common.
With more dogs in households, the likelihood of unintentional bites increases, especially in areas where leash laws, pet regulations, and responsible ownership practices vary.
These cities are renowned for their high dog ownership rates and pet-friendly amenities:
- Los Angeles, California: Known for its numerous dog parks and pet-friendly establishments.
- New York, New York: Offers a variety of dog-friendly parks and services.
- Chicago, Illinois: Features many off-leash areas and dog-friendly events.
- Denver, Colorado: Boasts numerous outdoor spaces and dog-friendly trails.
- San Diego California: Known for its dog-friendly beaches and parks.
- Miami, Florida: Offers various dog parks and pet-friendly venues.
- Houston, Texas: Provides numerous dog parks and pet-friendly establishments.
- Brooklyn, New York: Features several dog-friendly parks and events.
- Portland, Oregon: Known for its numerous dog parks and pet-friendly culture.
- San Francisco, California: Offers a variety of dog-friendly parks and services.
Top 10 States With the Highest Incidence of Snake Bites
Snake bites, while not as common as dog bites, can have severe consequences, especially when venomous species are involved. Identifying the states with the highest number of snake bite incidents helps pinpoint regions where people should be particularly cautious when hiking, gardening, or spending time outdoors.
These states often have warmer climates and diverse ecosystems where venomous snakes, such as rattlesnakes and copperheads, thrive. By recognizing where snake encounters are most frequent, residents and visitors can take preventive measures, such as wearing protective footwear, learning how to respond to a bite, and understanding which species are most dangerous in their area.
The following states have the highest number of reported venomous snake bites per year:
- Texas: 1,408 venomous snakebites annually.
- North Carolina: 856 venomous snakebites annually.
- Georgia: 530 venomous snakebites annually.
- Florida: 350 venomous snakebites annually.
- Louisiana: 334 venomous snakebites annually.
- Arkansas: 307 venomous snakebites annually.
- Mississippi: 236 venomous snakebites annually.
- Missouri: 234 venomous snakebites annually.
- California: 221 venomous snakebites annually.
- Virginia: 217 venomous snakebites annually.
How to Prevent Animal Bites
While some attacks are unpredictable, most bites can be avoided by practicing safe interactions with animals.
Dog Bite Prevention Tips
- Never approach an unfamiliar dog, especially when it’s eating, sleeping, or with puppies.
- Teach children how to interact safely with dogs—no pulling of tails or ears.
- Supervise playtime between children and dogs.
Cat Bite Prevention Tips
- Recognize warning signs like flattened ears and twitching tail—these indicate overstimulation.
- Avoid rough play that encourages biting or scratching behaviors.
Snake Bite Prevention Tips
- Stay aware of your surroundings in areas where snakes are common.
- Wear protective boots when hiking through tall grass or rocky areas.
- If you see a snake, back away slowly—don’t provoke it.
What to Do If You Are Bitten
Regardless of the animal, follow these immediate first–aid steps:
- Stop the bleeding by applying gentle pressure.
- Wash the wound with soap and warm water—avoid scrubbing to prevent tissue damage.
- Cover with a sterile bandage to prevent infection.
- Seek medical attention, especially if the bite is deep, bleeding excessively, or from an unfamiliar animal.
Awareness Is the Best Defense
While dogs, cats, and snakes are the most common culprits of animal bites, understanding why they attack and how to prevent incidents can help minimize risks.
By respecting animal behavior, practicing safe interactions, and knowing how to respond to a bite, people can reduce their chances of a serious injury.
At The Schiller Kessler Group, we believe that education and prevention are the first steps to staying safe around animals.
