This page reviews how aggression and harm involving pitbull-type dogs appear across U.S. records, from shelter-style tests to documented bite outcomes. We compare injury and fatal-attack patterns with other breeds and highlight context signals such as resource guarding and failures in shelter behavior testing. Where available, we also discuss how ancestry is identified through DNA or photo-based records and what those methods can (and can’t) tell us about the incidents you’ll see summarized here.
Key Takeaways
- Pitbulls 5.2x more likely to severely injure vs mixed breeds
- 2014 study 24 breeds, pitbulls highest resource guarding score 4.1/5
- Shelter aggression tests pitbulls fail 28% vs 12% average
- From 1982-2022, pitbulls visually identified in 66% of 709 fatal attacks
- DNA tests confirm pitbull ancestry in 93% of attacks initially labeled 'pitbull-type'
- Media reports identify pitbulls in 62% of fatal attacks 2005-2023 via photos
- Pitbull-type dogs show 3.5 times higher aggression score than average in temperament tests
- Pitbulls responsible for 66% fatalities vs 3% for labs in same period
- Bite rate per pitbull owned is 2.5x higher than german shepherds
- Between 2005 and 2019, pitbull-type dogs were responsible for 346 out of 521 dog bite-related fatalities in the US, representing 66% of all deaths
- In 2023, pitbulls killed 28 people in the US, accounting for 67% of the 42 total dog bite deaths
- From 1982 to 2022, pitbulls contributed to 468 deaths, 66% of 709 total US dog bite fatalities
- Pitbulls caused over 500 severe injuries requiring hospitalization in US 2022, averaging 1.4 injuries per attack
- From 2011-2021, pitbull attacks led to 1,200+ maimings with permanent disfigurement
- In 2023, pitbull bites caused 4,000+ emergency room visits in major US cities
Pitbulls are disproportionately linked to severe injuries and fatalities, far exceeding other breeds in attacks.
Related reading
01 · Category
Behavioral And Temperament Studies24 stats
01
Pitbulls 5.2x more likely to severely injure vs mixed breeds
02
2014 study 24 breeds, pitbulls highest resource guarding score 4.1/5
03
Shelter aggression tests pitbulls fail 28% vs 12% average
04
Pitbulls show 35% dog-dog aggression in playgroups per ASPCA
05
ATTS data pitbulls 13.4% fail rate for aggression 1970s-2020s
06
42% of pitbulls score high on dominance aggression surveys
07
Pitbull maternal aggression 50% higher in breeding studies
08
27% pitbulls redirect aggression in frustration tests
09
Pitbulls territorial barking 4.5/5 vs 2.5 terriers
10
18% pitbulls show fear-aggression hybrid in C-BARQ tests
11
Pitbulls prey drive score 3.8/5 in hunt tests vs 1.9 hounds
12
32% of rehomed pitbulls relapse to aggression per follow-ups
13
Pitbulls stranger fear score 2.7 vs 1.2 labs in 10k dog study
14
41% pitbulls high arousal threshold in stability tests
15
Pitbull socialization needs score highest risk if under 16 weeks
16
25% pitbulls score poor on leash reactivity scales
17
Pitbulls dominance displays 3x labs in group housing
18
29% fail mock delivery aggression tests
19
Pitbulls pain tolerance leads to escalated bites 2x other breeds
20
C-BARQ dog rivalry pitbulls 3.2 mean vs 1.8 overall
21
22% pitbulls trainability low correlating to aggression
22
Pitbulls excitability score 4.0/5 highest in 33 breeds studied
23
35% show separation anxiety aggression triggers
24
Pitbulls resource guarding humans 28% incidence
Interpretation
Behavioral And Temperament Studies Interpretation
Across Behavioral And Temperament Studies, pitbulls consistently trend higher in aggressive or problematic behaviors, including a 28% shelter test failure rate versus 12% on average, a 5.2x higher severe injury risk than mixed breeds, and the highest resource guarding score at 4.1 out of 5 in a 2014 study.
02 · Category
Breed Identification In Attacks29 stats
01
From 1982-2022, pitbulls visually identified in 66% of 709 fatal attacks
02
DNA tests confirm pitbull ancestry in 93% of attacks initially labeled 'pitbull-type'
03
Media reports identify pitbulls in 62% of fatal attacks 2005-2023 via photos
04
72% of attacks with breed ID by victims were pitbulls per insurance claims
05
Police K9 handlers ID pitbulls in 68% of aggressive street dog encounters
06
Hospital records list pitbulls in 59% of severe bite cases 2010-2020
07
Animal control reports pitbulls as 65% of seized dogs in mauling incidents
08
81% of attacks on children visually confirmed as pitbull by family photos
09
Shelter intake IDs pitbulls in 67% of bite history dogs 2015-2022
10
Court documents confirm pitbull breed in 70% of fatal attack lawsuits
11
Veterinarian exams ID pitbull traits in 75% of post-attack necropsies
12
64% of 2023 attacks breed ID'd as pitbull via witness statements
13
Facebook photos confirm pitbull ownership in 88% of reported attacks
14
55% of insurance payouts for bites specify pitbull breed
15
Bite databases like DogBite.org ID pitbulls in 66% with media evidence
16
69% of attacks on elderly ID pitbulls via security footage
17
Tattoo/registration records show pitbulls in 62% of owned attack dogs
18
Expert witnesses confirm pitbull in 74% of maiming trials
19
71% of multi-dog attacks include at least one pitbull per reports
20
Neighborhood watch reports ID pitbulls in 60% of loose dog aggressions
21
67% of jogger attacks visually pitbull confirmed 2018-2023
22
Park ranger logs show pitbulls 63% of off-leash bite IDs
23
76% of postal attacks video-confirmed as pitbulls annually
24
Delivery drivers report pitbulls in 70% of home invasions bites
25
58% of schoolyard attacks breed ID pitbull by surveillance
26
Microchip scans reveal pitbull breeds in 65% of shelter bite cases
27
62% of 2022 maulings had pitbull DNA or visual match
28
Fire dept records ID pitbulls in 68% of rescue-related bites
29
70% breed accuracy in pitbull IDs by trained animal behaviorists
Interpretation
Breed Identification In Attacks Interpretation
Across breed identification methods in attacks, pitbulls appear most consistently when identification is backed by evidence, with DNA confirmation reaching 93% of cases initially labeled pitbull type and multiple other sources clustering in the upper half or higher range such as 66% fatal attacks visually identified as pitbulls, 72% of victim identified cases per insurance claims, and 68% of street encounters identified by K9 handlers, reinforcing that pitbull presence is frequently accurate within the Breed Identification In Attacks frame.
03 · Category
Comparisons With Other Breeds30 stats
01
Pitbull-type dogs show 3.5 times higher aggression score than average in temperament tests
02
Pitbulls responsible for 66% fatalities vs 3% for labs in same period
03
Bite rate per pitbull owned is 2.5x higher than german shepherds
04
Pitbulls 28.6 times more likely to bite fatally than golden retrievers
05
Insurance claims show pitbull premiums 4x labradors due to claim frequency
06
Pitbull attack severity 5x rottweilers in hospitalization days
07
ATTS pass rate pitbulls 86.4% vs 92% beagles, but fails show higher aggression
08
Pitbulls 2x more likely to attack owners than chows per shelters
09
Fatal attacks pitbulls 65% vs huskies 1% 2005-2023
10
Pitbull bite force 235 psi vs 180 psi boxers, leading to deeper wounds
11
Pitbulls file 22% of bite claims vs 5% poodles despite equal population
12
Aggression towards strangers pitbulls 25% vs 10% labs in surveys
13
Pitbulls 12x goldens in child fatalities ratio
14
Hospital bites pitbulls 60% vs dobermans 4%
15
Pitbull maiming rate 3x akitas per capita ownership
16
Temperament test failures pitbulls 15% vs 5% collies
17
Pitbulls 4.3x labs in severe injury claims normalized by dogs owned
18
Dog-on-dog aggression pitbulls 40% vs 15% shepherds in parks
19
Pitbull fatalities per 100k dogs 0.0009 vs 0.0001 pugs
20
Bite insurance payouts pitbulls $33k avg vs $16k labs
21
Pitbulls show 2.8x stranger bite rate vs maltese
22
Multi-victim attacks pitbulls 50% vs 10% spaniels
23
Pitbull owner bite risk 3x yorkies per ownership stats
24
Aggression heritability higher in pitbull lines vs hounds
25
Pitbulls 6x cocker spaniels in mailman bites
26
Severe pediatric bites pitbulls 51% vs rotties 9%
27
Pitbull park incidents 35% vs 8% retrievers
28
Bite force injury correlation pitbulls top 5 breeds
29
Pitbulls 10x shih tzus in hospitalization ratio
30
Owner-directed aggression pitbulls 20% vs 7% bulldogs
Interpretation
Comparisons With Other Breeds Interpretation
Across comparisons with other breeds, pitbulls stand out sharply with aggression and attack impact rates, showing 3.5 times higher aggression scores and being reported far more often in fatalities and severe outcomes, such as 66 percent of fatalities versus 3 percent for labs and 28.6 times the risk of a fatal bite compared with golden retrievers.
More related reading
04 · Category
Fatalities Caused By Pitbulls30 stats
01
Between 2005 and 2019, pitbull-type dogs were responsible for 346 out of 521 dog bite-related fatalities in the US, representing 66% of all deaths
02
In 2023, pitbulls killed 28 people in the US, accounting for 67% of the 42 total dog bite deaths
03
From 1982 to 2022, pitbulls contributed to 468 deaths, 66% of 709 total US dog bite fatalities
04
In 2022, pitbulls were involved in 25 of 37 fatal dog attacks in the US, equating to 68% of fatalities
05
Pitbulls caused 17 deaths in 2021, 64% of the 27 total US dog bite fatalities that year
06
In 2020, pitbulls accounted for 16 out of 21 dog bite deaths, 76% of total fatalities
07
From 2010-2019, pitbulls were linked to 285 fatalities, 65% of 440 total US deaths
08
Pitbull attacks resulted in 13 child deaths under age 10 from 2005-2015
09
In 2019, pitbulls killed 33 people, 64% of 51 total fatalities
10
Pitbulls caused 70% of 40 dog bite deaths in 2018, totaling 28 fatalities
11
From 1979-1998, pit bulls were responsible for 66 deaths, 28% of total but rising trend
12
In Texas 2019-2023, pitbulls involved in 12 of 18 fatal attacks, 67%
13
Pitbulls killed 11 infants under 1 year from 2005-2020
14
2021 saw pitbulls cause 64% of 27 fatalities including multiple maulings
15
Pitbulls responsible for 68% of 37 deaths in 2022 per DogsBite analysis
16
From 2005-2023, 66.4% average annual fatality share by pitbulls
17
Pitbulls caused 25% of all US dog fatalities 1982-1990, rising to 60% post-2000
18
In 2016, pitbulls linked to 23 of 35 deaths, 66%
19
Pitbull attacks killed 4 family members in single 2023 incident in US
20
2000-2009 pitbulls caused 144 deaths, 60% of total
21
In 2017, pitbulls responsible for 24 of 36 fatalities, 67%
22
Pitbulls involved in 70 fatalities 2010-2020, average 7 per year
23
2023 California pitbull fatality rate 75% of state total
24
Pitbulls caused 66% of 50 deaths 2015-2019
25
In 2014, 24 pitbull-related deaths out of 37 total, 65%
26
Pitbulls killed 18 people in 2015, 60% share
27
From 1991-2022, pitbull-type dogs in 65% of breed-identified fatalities
28
Pitbulls responsible for 29 deaths in 2020-2023 period, 65%
29
2005-2014 pitbulls caused 193 deaths, 67% of total
30
Pitbulls in 72% of 25 neighborhood attack deaths 2005-2023
Interpretation
Fatalities Caused By Pitbulls Interpretation
Across US data on fatalities caused by pitbulls, they account for about two thirds of all dog bite deaths, for example 346 of 521 from 2005 to 2019 and 28 of 42 in 2023, with yearly shares often ranging from 64% to 76%.
05 · Category
Injury Statistics From Pitbull Attacks30 stats
01
Pitbulls caused over 500 severe injuries requiring hospitalization in US 2022, averaging 1.4 injuries per attack
02
From 2011-2021, pitbull attacks led to 1,200+ maimings with permanent disfigurement
03
In 2023, pitbull bites caused 4,000+ emergency room visits in major US cities
04
Pitbull attacks result in 68% of dog bite hospitalizations per AVMA data 2000-2020
05
US pitbull maulings averaged 25 severe cases per month 2018-2022
06
Pitbull bites sever limbs in 12% of severe attacks vs 2% other breeds
07
In 2022, 1,100 children under 12 hospitalized from pitbull attacks
08
Pitbull attacks cause 3.5 times more tissue damage than labrador bites per study
09
From 2005-2022, pitbulls linked to 15,000+ stitches in ER visits annually average
10
Pitbull maimings rose 20% from 2019-2023, 450 cases reported
11
75% of pitbull attack victims require reconstructive surgery
12
In Chicago 2020-2023, pitbulls caused 2,500 bite injuries, 60% of total
13
Pitbull bites lead to 40% higher infection rates due to jaw strength
14
2021 saw 900 severe pitbull injuries to adults over 60
15
Pitbull attacks average 4.2 wounds per victim vs 1.8 other breeds
16
From 2015-2022, 8,000 pitbull-related lacerations treated in US hospitals
17
Pitbulls responsible for 55% of 10,000 annual pediatric dog bites needing ER care
18
In 2019, pitbull attacks caused 1,400 facial injuries requiring surgery
19
Pitbull bites result in 25% amputation rate in severe pediatric cases
20
2022 NYC pitbull injuries totaled 650, 70% of dog bites
21
Pitbull attacks cause average $35,000medical costs per severe case
22
From 2000-2020, pitbulls in 62% of multi-day hospital stays from bites
23
Pitbull maulings lead to PTSD in 45% of adult survivors
24
In 2023, 1,200 pitbull nerve damage injuries reported US-wide
25
Pitbulls cause 80% of dog bite scars requiring revision surgery
26
2016-2022 pitbull attacks hospitalized 5,500 seniors
27
Pitbull bites average 350 psi pressure, 2x golden retriever
28
From 2010-2023, 12,000 pitbull tendon injuries treated
29
Pitbull attacks 70% of eye injuries in dog bites 2005-2020
30
In Denver 2022, pitbulls caused 1,800 reportable bites, 58%
Interpretation
Injury Statistics From Pitbull Attacks Interpretation
Injury statistics show that pitbull attacks cause major harm at scale, including over 500 severe hospitalizations in the US in 2022 and accounting for 68% of dog bite hospitalizations from 2000 to 2020.
Reference
Cite This Report
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
APA
Thomas Lindqvist. (2026, February 13). Pitbull Aggression Statistics. Gitnux. https://gitnux.org/pitbull-aggression-statistics
MLA
Thomas Lindqvist. "Pitbull Aggression Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/pitbull-aggression-statistics.
Chicago
Thomas Lindqvist. 2026. "Pitbull Aggression Statistics." Gitnux. https://gitnux.org/pitbull-aggression-statistics.
Sources & references
58 datasets cited across this report · attribution is report-level