Research and Links

Gang Involvement (see data for this topic)

Websites with Related Information

• Adolescent Violence Prevention: Professional Resource Guide. Maternal and Child Health Digital Library.
• Centers for Disease Control and Prevention: School Connectedness
• CrimeSolutions.gov. National Institute of Justice.
• Gang Involvement Prevention. Youth.gov.
• National Criminal Justice Reference Service: Youth Violence - Gangs. U.S. Dept. of Justice Office of Justice Programs.
• National Gang Center. U.S. Dept. of Justice Office of Justice Programs.
• Office of Juvenile Justice and Delinquency Prevention: Gang Violence Prevention. U.S. Dept. of Justice.
• Urban Networks to Increase Thriving Youth (UNITY) Prevention Institute.
• VetoViolence. Centers for Disease Control and Prevention.

Key Reports and Research

• California School Climate, Health, and Learning Surveys (CalSCHLS) Reports and Data. WestEd.
• Changing Course: Preventing Gang Membership. (2013). National Institute of Justice & National Center for Injury Prevention and Control. Simon, T. R., et al. (Eds.)
• Connecting the Dots: An Overview of the Links Among Multiple Forms of Violence. (2014). Centers for Disease Control and Prevention & Prevention Institute. Wilkins, N., et al.
• Highlights of the 2012 National Youth Gang Survey. (2014). U.S. Dept. of Justice Office of Juvenile Justice and Delinquency Prevention. Egley, A., et al.
• How to Help Me Get Out of a Gang: Youth Recommendations to Family, School, Community, and Law Enforcement Systems. (2017). Journal of Juvenile Justice. Sharkey, J. D., et al.
• Juvenile Offenders and Victims: 2014 National Report. (2014). National Center for Juvenile Justice. Sickmund, M., & Puzzanchera, C. (Eds.)
• National Gang Center Strategic Planning Tool. U.S. Dept. of Justice Office of Justice Programs.
• National Gang Report. National Gang Intelligence Center.
• Prevalence of Childhood Exposure to Violence, Crime, and Abuse: Results from the National Survey of Children’s Exposure to Violence. (2015). JAMA Pediatrics. Finkelhor, D., et al.
• Preventing Youth Violence: Opportunities for Action. (2014). National Center for Injury Prevention and Control. David-Ferdon, C., & Simon, T. R.
• School Discipline Consensus Report: Strategies from the Field to Keep Students Engaged in School and Out of the Juvenile Justice System. (2014). Council of State Governments Justice Center. Morgan, E., et al.
• The Non-Criminal Consequences of Gang Membership: Impacts on Education and Employment in the Life-Course. (2012). Arizona State University. Pyrooz, D. C.

County/Regional Reports

• Annual Report on the Conditions of Children in Orange County. Orange County Children's Partnership.
• Evaluation of the Los Angeles Gang Reduction and Youth Development Program: Year 4 Evaluation Report. (2015). Urban Institute. Cahill, M., et al.
• Mayor’s Gang Prevention Task Force 2018-2020 Strategic Work Plan. City of San Jose.
• Orange County Community Indicators Report. Orange County Community Indicators Project.

More Data Sources For Gang Involvement

• California School Climate, Health, and Learning Surveys Public Dashboards. WestEd & California Dept. of Education.
• Indicators of School Crime and Safety. National Center for Education Statistics.
• National Youth Gang Survey Analysis. National Gang Center.

Learn More About This Topic

Why This Topic Is Important

While youth involved in gangs comprise only a small portion of the adolescent population, gang membership is a significant threat to youth health and well being in the U.S. (1). The majority of youth who join gangs do so between the ages of 11 and 15, and nearly one in five students in grades 6 to 12 report that their school has gangs (1). Gang members are responsible for the majority of serious violence committed by youth, and they are more likely to bring weapons to school than other youth (2). Youth involved in gangs also are more likely to drop out of school, abuse substances, engage in high risk sexual behavior, and experience employment instability (1).

The effects of gang activity extend beyond the individuals involved. For example, when youth are exposed to violence or feel unsafe at school, it can negatively affect their health and well being as well as their academic performance (2, 3). Communities also can be affected in terms of reduced quality of life, increased crime, families moving out of neighborhoods, and economic costs, e.g., losses in property values, local businesses, and tax revenue (1).

For more information on student gang involvement, see kidsdata.org’s Research & Links section.

Sources for this narrative:

1.  Simon, T. R., et al. (Eds.). (2013). Changing course: Preventing gang membership. National Institute of Justice & National Center for Injury Prevention and Control. Retrieved from: https://nij.gov/publications/changing-course

2.  Austin, G., et al. (2013). Guidebook to the California Healthy Kids Survey, part II: Survey content – core module, 2013-14 edition. WestEd. Retrieved from: https://data.calschls.org/resources/chks_guidebook_2_coremodules.pdf

3.  National Center on Safe Supportive Learning Environments. (n.d.). Topics and research: Safety. Retrieved from: https://safesupportivelearning.ed.gov/topic-research/safety

Policy Implications

Policymakers across the state and nation are taking action to combat youth gang activity. The most effective approaches go beyond law enforcement and gang suppression to comprehensive prevention strategies that address individual, family, school, and community risk factors associated with gang involvement (1, 2). Early prevention is critical, as most youth who join gangs become members between ages 11 and 15 (1).

Policy options that could prevent gang involvement include:

• Supporting evidence-based programs that strengthen parenting, family support, and family functioning (e.g., warm family bonds, consistent child supervision and discipline, and strong social networks), including early prevention programs that provide support to low-income pregnant mothers and families with young children (1, 2, 4)
• Ensuring that schools assess gang problems and engage families and community partners to create safe, supportive school climates, which are linked to lower rates of violence, improved academic performance, and other positive outcomes (1, 3, 4)
• Supporting school-wide programs that help all students build social-emotional skills, such as problem solving and conflict resolution skills (1, 3, 4)
• Promoting implementation of non-punitive school discipline policies that are clear, fair, consistent, and promote a positive learning environment; such policies should be based on a tiered system of appropriate responses to misconduct that keep students in school when possible and should include clear, equitable classroom behavior management practices (2, 3)
• Supporting coordinated community efforts to build on neighborhood strengths and provide youth with positive, supervised activities, such as tutoring, mentoring, after-school programs, life-skills training, and recreational activities (1, 2, 4)
• Implementing evidence-based, data-driven, comprehensive gang intervention strategies tailored to community needs and based on cross-sector community partnerships operating in concert with law enforcement; these should include prevention, intervention, and suppression efforts that are carefully developed, implemented, and evaluated (1, 2, 4)

For more policy ideas related to youth gang involvement, visit the National Gang Center. Also see Policy Implications on kidsdata.org under these topics: School Attendance and Discipline, School Safety, Bullying and Harassment at School, and Juvenile Arrests.

Sources for this narrative:

1.  Simon, T. R., et al. (Eds.). (2013). Changing course: Preventing gang membership. National Institute of Justice & National Center for Injury Prevention and Control. Retrieved from: https://nij.gov/publications/changing-course

2.  Howell, J. C. (2010). Gang prevention: An overview of research and programs. Juvenile Justice Bulletin. Retrieved from: https://www.ncjrs.gov/pdffiles1/ojjdp/231116.pdf

3.  Morgan, E., et al. (2014). The school discipline consensus report: Strategies from the field to keep students engaged in school and out of the juvenile justice system. Council of State Governments Justice Center. Retrieved from: https://csgjusticecenter.org/youth/school-discipline-consensus-report

4.  David-Ferdon, C., & Simon, T. R. (2014). Preventing youth violence: Opportunities for action. National Center for Injury Prevention and Control. Retrieved from: https://www.cdc.gov/violenceprevention/youthviolence/pdf/opportunities-for-action.pdf

How Children Are Faring

In 2015-2017, fewer than 1 in 20 California 7th, 9th, and 11th graders considered themselves gang members, down from more than 1 in 15 in 2011-2013. Students in non-traditional programs, students with lower levels of school connectedness, male students, and students whose parents had lower levels of education were more likely to be involved with gangs than their peers in other groups. Asian youth had the lowest rates of gang involvement (4%) among racial/ethnic groups with data in 2015-2017, while African American/black youth had the highest (8%). Reports of gang membership also tended to be lower for straight students in comparison with students who identified as gay, lesbian, or bisexual, and those unsure of their sexual orientation.

School staff reports from 2015-2017 show that gang-related activity was a moderate or severe problem according to 2% of responses by elementary school staff, 9% of responses by middle school staff, 13% of responses by high school staff, and 31% of responses by non-traditional program staff statewide.