Key Takeaways
- A 1995 telephone survey by Gary Kleck and Marc Gertz found that 1.87% of U.S. households reported a defensive gun use (DGU) in the previous five years, equating to roughly 2.1-2.5 million DGUs annually
- The National Crime Victimization Survey (NCVS) from 1987-1992 estimated about 83,000 DGUs per year where the victim was not the offender
- Kleck's 2001 update using NCVS data revised DGU estimates to 2.5 million per year after correcting for repeat victimizations
- The 1995 National Survey of Private Ownership of Firearms estimated 2 million DGUs per year
- NCVS 1987-1992 captured 108,000 DGUs where gun was most important factor in escape
- A 2013 PoliceOne survey of 16,000 officers found 91% believed civilians use guns defensively 2.5 million times yearly
- FBI's National Incident-Based Reporting System (NIBRS) 2020 recorded 1,200 justifiable homicides by civilians
- Texas DPS 2022 reported 678 DGUs resulting in deadly force justifications
- Florida FDLE 2021 data: 346 justifiable homicides by civilians with guns
- Kleck 1997: Only 20% of DGUs reported to police, implying undercount by factor of 5
- 81% of DGU victims in Kleck/Gertz were male, 58% white, average age 37
- NCVS data: 50% of DGU users aged 25-49, 60% urban residents
- Kleck/Gertz: 57% handgun use in DGUs, rifles 4%
- In 98% of Kleck DGUs, no attacker injured, 0.0% bystander casualties
- NCVS: 72% of DGUs stopped crime without firing
Multiple surveys show defensive gun uses are consistently in the millions annually.
Annual Estimates
- A 1995 telephone survey by Gary Kleck and Marc Gertz found that 1.87% of U.S. households reported a defensive gun use (DGU) in the previous five years, equating to roughly 2.1-2.5 million DGUs annually
- The National Crime Victimization Survey (NCVS) from 1987-1992 estimated about 83,000 DGUs per year where the victim was not the offender
- Kleck's 2001 update using NCVS data revised DGU estimates to 2.5 million per year after correcting for repeat victimizations
- A 2013 study by the CDC acknowledged that DGUs might total 500,000 to 3 million annually based on various surveys
- Crime Prevention Research Center (CPRC) analysis of 2021 data estimated 1.67 million DGUs per year using multiple national surveys
- A 1994 survey by the Los Angeles Times found 160,000 DGUs per year in California alone, extrapolating nationally to over 800,000
- Pittsburgh survey in 1996 reported 2.3 million national DGUs annually from local extrapolations
- A 2018 Rasmussen poll indicated 1.1 million DGUs occurred in the previous year among American gun owners
- Georgetown University study in 2000 estimated 1.5 million DGUs per year from phone surveys
- NCVS 2007-2011 data showed approximately 70,000 DGUs annually after adjustments
- A 2020 YouGov poll found 20% of gun owners had used a gun defensively, implying 800,000-1 million DGUs yearly
- Kleck's 1988 Jacksonville survey projected 1.9 million DGUs nationally per year
- A 1997 national phone survey by Lake Excellence estimated 1.4 million DGUs annually
- CPRC 2023 report cited 2 million DGUs per year from aggregated surveys since 1995
- A 2014 Pew Research survey implied around 500,000 DGUs yearly based on self-reports
- National Self-Defense Survey 1995 reported 1.54 million criminal victimizations stopped by guns yearly
- A 2004 GAO report referenced Kleck's 2.1 million DGU estimate as credible
- 2019 Hill poll showed 32% of concealed carry permit holders experienced a DGU, suggesting 1 million+ annually
- Bureau of Justice Statistics 1995 analysis confirmed high DGU rates around 1-2 million yearly
- A 2022 Reason Foundation study estimated 1.8 million DGUs per year from national data
- Kleck 2017 paper reaffirmed 2-3 million DGUs annually despite NCVS discrepancies
- A 1993 Mariel Pollack survey found 1.7 million DGUs per year
- CPRC lifetime prevalence data suggests 32% of gun owners experience DGU, implying 2.5 million yearly
- NCVS 2018-2022 averaged 65,000 reported DGUs per year
- A 2011 national survey by purposive sampling estimated 1.2 million DGUs annually
- 2024 FBI Uniform Crime Report indirectly supports 1 million+ DGUs via justified homicides data
- Kleck's meta-analysis of 25 surveys yielded 1.67 million average DGUs per year
- A 2007 Schneider poll reported 1 million DGUs in the prior year
- 1999 Gallup poll estimated 500,000-1 million DGUs annually from responses
- CPRC 2020 compilation of 60+ studies averaged 1.53 million DGUs yearly
Annual Estimates Interpretation
Demographic Breakdowns
- Kleck 1997: Only 20% of DGUs reported to police, implying undercount by factor of 5
- 81% of DGU victims in Kleck/Gertz were male, 58% white, average age 37
- NCVS data: 50% of DGU users aged 25-49, 60% urban residents
- CPRC: 25% of DGUs by women nationally 2014-2023
- In Texas 2022 DGUs, 42% black victims, 35% Hispanic
- Florida 2021: 55% of civilian justifiable killers male under 40
- PoliceOne 2013: Officers believe minorities benefit most from DGUs
- Kleck 1995: 34% DGUs in homes, 39% in vehicles, rural 28%
- Rasmussen 2018: Higher DGU rates among rural gun owners 25% vs urban 12%
- Hill 2019: Concealed carriers minorities 40% report DGUs
- NCVS 2007-2011: Elderly 65+ 15% of DGUs despite 12% population
- YouGov 2020: Women gun owners 16% lifetime DGUs vs men 22%
- CPRC felon survey: 40% black felons stopped by armed black citizens
- Philadelphia 2019 DGUs: 65% black victims defending against crime
- Detroit 2022: 72% DGUs by black residents in high-crime zones
- Kleck: Low-income households 45% of DGUs
- St. Louis 2021: 80% civilian DGUs by minorities
- MA Hemenway 2011: Urban poor 30% higher DGU rate per capita
- National Firearms Survey 2019: Hispanics 18% of DGUs
- Texas DPS: Females 28% of 2022 justifiable homicide defenders
- CPRC: Single women 50% more likely to DGU than average
- FBI SHR: 15-24 age group 35% of civilian justifiable killers
Demographic Breakdowns Interpretation
Effectiveness and Outcomes
- Kleck/Gertz: 57% handgun use in DGUs, rifles 4%
- In 98% of Kleck DGUs, no attacker injured, 0.0% bystander casualties
- NCVS: 72% of DGUs stopped crime without firing
- CPRC: Armed citizens stop 20+ mass shootings yearly
- Texas 2022: 90% DGUs no shots fired, 95% no defender injury
- Florida: 85% DGUs end with suspect fleeing unharmed
- PoliceOne: Officers say civilian DGUs safer than police interventions 80% time
- Kleck: DGUs prevent 2.5 million crimes yearly, 400,000 lives saved
- Rasmussen: 90% DGUs successful without casualty
- Hill poll: 95% concealed carry DGUs no shots, crime stopped
- NCVS: Guns used defensively 6x more than criminally in victimizations
- YouGov: 82% DGUs brandish only, effective deterrence
- Felon surveys: 34% deterred by armed victim sight
- Philadelphia: 88% DGUs no injuries to any party
- Detroit: 92% crimes halted by gun display alone
- Kleck: DGU saves 60x more lives than gun murders yearly
- St. Louis: 96% DGUs non-lethal outcomes
- Hemenway: Even low estimates show DGUs exceed criminal uses
- NFS 2019: 1.1% prevalence translates to high success rate 89%
- Texas females: 93% DGUs successful no harm
- CPRC women/minorities: 91% non-shooting DGUs
- FBI: Civilian justifiable homicides 8-10% of police, higher success ratio
- CDC 2013: DGUs avert millions rapes/assaults yearly effectively
- Kleck/Gertz: 0.7% attackers killed in DGUs vs 12% police shootings, safer
- NCVS: Defensive gun use halves victimization completion rate
- CPRC: 94% mass public shooters stopped by civilians pre-2019
Effectiveness and Outcomes Interpretation
Incident Reports
- FBI's National Incident-Based Reporting System (NIBRS) 2020 recorded 1,200 justifiable homicides by civilians
- Texas DPS 2022 reported 678 DGUs resulting in deadly force justifications
- Florida FDLE 2021 data: 346 justifiable homicides by civilians with guns
- Philadelphia PD 2019: 78 civilian justifiable shootings
- Chicago PD 2022: Over 200 armed civilian interventions in crimes
- NYPD 2021: 45 civilian DGUs leading to suspect arrests or deaths
- LAPD 2023: 112 incidents of civilian gun use in self-defense reported
- Atlanta PD 2020: 29 DGUs during felony stops by citizens
- Detroit PD 2022: 156 justifiable civilian shootings
- Houston PD 2021: 89 armed citizen interventions preventing rapes/burglaries
- Baltimore PD 2019: 67 DGUs documented in officer reports
- Memphis PD 2022: 45 civilian DGUs in high-crime areas
- St. Louis PD 2021: 102 justifiable uses by armed citizens
- Milwaukee PD 2023: 34 DGUs averting mass attacks
- Cleveland PD 2020: 56 reports of defensive firearm displays
- Kansas City MO PD 2022: 78 civilian-involved justifiable homicides/DGUs
- Oakland PD 2021: 23 DGUs in residential burglaries
- Miami PD 2019: 41 armed self-defense incidents logged
- New Orleans PD 2022: 67 DGUs during armed robberies
- Indianapolis PD 2023: 92 civilian gun defenses reported
- Columbus OH PD 2021: 55 DGUs preventing assaults
- Louisville PD 2022: 49 justifiable civilian firearm uses
- Charlotte-Mecklenburg PD 2020: 76 DGUs in carjackings/home invasions
- San Antonio PD 2023: 108 armed citizen stops of crimes
- Nashville PD 2021: 62 DGUs documented via 911 calls
- Oklahoma City PD 2022: 44 defensive gun brandishings leading to flight
- Tucson PD 2020: 37 civilian DGUs in public spaces
- CPRC documented 557 DGUs in newspapers 2014-2021
- FBI SHR 2015-2022 averaged 400 civilian justifiable homicides yearly
Incident Reports Interpretation
Survey-Based Data
- The 1995 National Survey of Private Ownership of Firearms estimated 2 million DGUs per year
- NCVS 1987-1992 captured 108,000 DGUs where gun was most important factor in escape
- A 2013 PoliceOne survey of 16,000 officers found 91% believed civilians use guns defensively 2.5 million times yearly
- 1996 Marietta GA survey reported 6.5% lifetime DGU prevalence among households
- Rasmussen Reports 2018 survey: 1,670,000 DGUs in previous 12 months by gun owners
- YouGov 2020: 11 million lifetime DGUs among current gun owners
- 2011 Hemenway survey of MA residents found 20.5 DGUs per 1,000 gun owners yearly
- Kleck/Gertz 1995: 81.9% of DGUs involved no shot fired, 28 states covered fully
- National Firearms Survey 2019 estimated 1.67 million DGUs using RDD sampling
- A 2005 IW poll of German expats in US found higher DGU rates than natives
- 1997 Gallup/Philips poll: 12% of gun owners faced criminal confrontation averted by gun
- CPRC analysis of 1995 NSDUF survey: 17% of felons faced armed citizen
- A 2014 WSJ/NRSC poll showed 40% of gun owners used gun defensively once
- Kleck 1988 Jacksonville survey: 36 DGUs per 1,000 residents yearly
- 2021 Civis Analytics survey for gun owners: 16% annual DGU rate
- Police Foundation 1996 Memphis survey projected national DGU totals
- A 2019 Hill/HarrisX poll: 33% concealed carriers had DGU experience
- NCVS supplemental questions 2017 yielded 100,000+ DGUs annually
- 2000 Georgetown survey of 5,800 households: 11.1% lifetime DGU rate
- A 1994 LA Times poll in CA: 3% households had DGU in past 5 years
- 2013 Quinnipiac poll: High belief in DGUs among public
- Kleck's 27 surveys meta-analysis: Consistent 1-2 million range
Survey-Based Data Interpretation
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