Unintentional Injury Hospitalizations, by Age Group

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Alameda County
Alpine County
Amador County
Butte County
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Colusa County
Contra Costa County
Del Norte County
El Dorado County
Fresno County
Glenn County
Humboldt County
Imperial County
Inyo County
Kern County
Kings County
Lake County
Lassen County
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Madera County
Marin County
Mariposa County
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Merced County
Modoc County
Mono County
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Napa County
Nevada County
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Placer County
Plumas County
Riverside County
Sacramento County
San Benito County
San Bernardino County
San Diego County
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San Joaquin County
San Luis Obispo County
San Mateo County
Santa Barbara County
Santa Clara County
Santa Cruz County
Shasta County
Sierra County
Siskiyou County
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Tehama County
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CaliforniaNumber
Under Age 11,235
Ages 1-43,831
Ages 5-124,611
Ages 13-152,243
Ages 16-205,831
Total for Ages 20 and Under17,751
Alameda CountyNumber
Under Age 145
Ages 1-4130
Ages 5-12213
Ages 13-1597
Ages 16-20175
Total for Ages 20 and Under660
Alpine CountyNumber
Under Age 10
Ages 1-40
Ages 5-120
Ages 13-150
Ages 16-200
Total for Ages 20 and Under0
Amador CountyNumber
Under Age 10
Ages 1-43
Ages 5-124
Ages 13-152
Ages 16-204
Total for Ages 20 and Under13
Butte CountyNumber
Under Age 19
Ages 1-419
Ages 5-1227
Ages 13-1518
Ages 16-2057
Total for Ages 20 and Under130
Calaveras CountyNumber
Under Age 11
Ages 1-43
Ages 5-122
Ages 13-154
Ages 16-207
Total for Ages 20 and Under17
Colusa CountyNumber
Under Age 12
Ages 1-40
Ages 5-123
Ages 13-150
Ages 16-204
Total for Ages 20 and Under9
Contra Costa CountyNumber
Under Age 126
Ages 1-4105
Ages 5-12155
Ages 13-1570
Ages 16-20168
Total for Ages 20 and Under524
Del Norte CountyNumber
Under Age 11
Ages 1-44
Ages 5-121
Ages 13-152
Ages 16-204
Total for Ages 20 and Under12
El Dorado CountyNumber
Under Age 13
Ages 1-412
Ages 5-1215
Ages 13-1518
Ages 16-2044
Total for Ages 20 and Under92
Fresno CountyNumber
Under Age 164
Ages 1-4152
Ages 5-12132
Ages 13-1566
Ages 16-20163
Total for Ages 20 and Under577
Glenn CountyNumber
Under Age 10
Ages 1-46
Ages 5-125
Ages 13-151
Ages 16-209
Total for Ages 20 and Under21
Humboldt CountyNumber
Under Age 12
Ages 1-411
Ages 5-1210
Ages 13-153
Ages 16-2020
Total for Ages 20 and Under46
Imperial CountyNumber
Under Age 15
Ages 1-414
Ages 5-1220
Ages 13-154
Ages 16-2026
Total for Ages 20 and Under69
Inyo CountyNumber
Under Age 10
Ages 1-42
Ages 5-123
Ages 13-152
Ages 16-200
Total for Ages 20 and Under7
Kern CountyNumber
Under Age 139
Ages 1-4123
Ages 5-12124
Ages 13-1559
Ages 16-20164
Total for Ages 20 and Under509
Kings CountyNumber
Under Age 15
Ages 1-415
Ages 5-129
Ages 13-158
Ages 16-2016
Total for Ages 20 and Under53
Lake CountyNumber
Under Age 11
Ages 1-45
Ages 5-122
Ages 13-156
Ages 16-209
Total for Ages 20 and Under23
Lassen CountyNumber
Under Age 10
Ages 1-43
Ages 5-122
Ages 13-151
Ages 16-206
Total for Ages 20 and Under12
Los Angeles CountyNumber
Under Age 1352
Ages 1-41,257
Ages 5-121,545
Ages 13-15653
Ages 16-201,545
Total for Ages 20 and Under5,352
Madera CountyNumber
Under Age 14
Ages 1-423
Ages 5-1229
Ages 13-1517
Ages 16-2027
Total for Ages 20 and Under100
Marin CountyNumber
Under Age 14
Ages 1-48
Ages 5-1227
Ages 13-1516
Ages 16-2028
Total for Ages 20 and Under83
Mariposa CountyNumber
Under Age 10
Ages 1-40
Ages 5-122
Ages 13-150
Ages 16-203
Total for Ages 20 and Under5
Mendocino CountyNumber
Under Age 12
Ages 1-47
Ages 5-1210
Ages 13-157
Ages 16-2023
Total for Ages 20 and Under49
Merced CountyNumber
Under Age 112
Ages 1-421
Ages 5-1221
Ages 13-1516
Ages 16-2042
Total for Ages 20 and Under112
Modoc CountyNumber
Under Age 10
Ages 1-40
Ages 5-120
Ages 13-151
Ages 16-204
Total for Ages 20 and Under5
Mono CountyNumber
Under Age 10
Ages 1-40
Ages 5-123
Ages 13-151
Ages 16-202
Total for Ages 20 and Under6
Monterey CountyNumber
Under Age 18
Ages 1-439
Ages 5-1253
Ages 13-1524
Ages 16-2073
Total for Ages 20 and Under197
Napa CountyNumber
Under Age 14
Ages 1-49
Ages 5-126
Ages 13-155
Ages 16-2019
Total for Ages 20 and Under43
Nevada CountyNumber
Under Age 11
Ages 1-42
Ages 5-1218
Ages 13-157
Ages 16-2013
Total for Ages 20 and Under41
Orange CountyNumber
Under Age 198
Ages 1-4285
Ages 5-12339
Ages 13-15176
Ages 16-20416
Total for Ages 20 and Under1,314
Placer CountyNumber
Under Age 16
Ages 1-428
Ages 5-1248
Ages 13-1526
Ages 16-2070
Total for Ages 20 and Under178
Plumas CountyNumber
Under Age 10
Ages 1-41
Ages 5-120
Ages 13-150
Ages 16-201
Total for Ages 20 and Under2
Riverside CountyNumber
Under Age 167
Ages 1-4203
Ages 5-12203
Ages 13-15123
Ages 16-20380
Total for Ages 20 and Under976
Sacramento CountyNumber
Under Age 157
Ages 1-4184
Ages 5-12214
Ages 13-15111
Ages 16-20289
Total for Ages 20 and Under855
San Benito CountyNumber
Under Age 11
Ages 1-43
Ages 5-126
Ages 13-156
Ages 16-209
Total for Ages 20 and Under25
San Bernardino CountyNumber
Under Age 160
Ages 1-4180
Ages 5-12214
Ages 13-1582
Ages 16-20334
Total for Ages 20 and Under870
San Diego CountyNumber
Under Age 1152
Ages 1-4354
Ages 5-12418
Ages 13-15221
Ages 16-20619
Total for Ages 20 and Under1,764
San Francisco CountyNumber
Under Age 122
Ages 1-456
Ages 5-1291
Ages 13-1516
Ages 16-2058
Total for Ages 20 and Under243
San Joaquin CountyNumber
Under Age 127
Ages 1-470
Ages 5-1280
Ages 13-1548
Ages 16-20134
Total for Ages 20 and Under359
San Luis Obispo CountyNumber
Under Age 13
Ages 1-411
Ages 5-1212
Ages 13-1511
Ages 16-2028
Total for Ages 20 and Under65
San Mateo CountyNumber
Under Age 19
Ages 1-417
Ages 5-1237
Ages 13-1521
Ages 16-2060
Total for Ages 20 and Under144
Santa Barbara CountyNumber
Under Age 19
Ages 1-426
Ages 5-1233
Ages 13-1516
Ages 16-2061
Total for Ages 20 and Under145
Santa Clara CountyNumber
Under Age 141
Ages 1-4125
Ages 5-12145
Ages 13-1574
Ages 16-20196
Total for Ages 20 and Under581
Santa Cruz CountyNumber
Under Age 15
Ages 1-422
Ages 5-1220
Ages 13-1511
Ages 16-2041
Total for Ages 20 and Under99
Shasta CountyNumber
Under Age 14
Ages 1-421
Ages 5-1218
Ages 13-159
Ages 16-2026
Total for Ages 20 and Under78
Sierra CountyNumber
Under Age 10
Ages 1-40
Ages 5-120
Ages 13-150
Ages 16-200
Total for Ages 20 and Under0
Siskiyou CountyNumber
Under Age 11
Ages 1-42
Ages 5-122
Ages 13-150
Ages 16-204
Total for Ages 20 and Under9
Solano CountyNumber
Under Age 114
Ages 1-438
Ages 5-1232
Ages 13-1521
Ages 16-2044
Total for Ages 20 and Under149
Sonoma CountyNumber
Under Age 18
Ages 1-422
Ages 5-1233
Ages 13-1520
Ages 16-2053
Total for Ages 20 and Under136
Stanislaus CountyNumber
Under Age 111
Ages 1-443
Ages 5-1243
Ages 13-1543
Ages 16-2093
Total for Ages 20 and Under233
Sutter CountyNumber
Under Age 14
Ages 1-416
Ages 5-1216
Ages 13-155
Ages 16-2012
Total for Ages 20 and Under53
Tehama CountyNumber
Under Age 13
Ages 1-44
Ages 5-124
Ages 13-152
Ages 16-208
Total for Ages 20 and Under21
Trinity CountyNumber
Under Age 10
Ages 1-43
Ages 5-121
Ages 13-152
Ages 16-202
Total for Ages 20 and Under8
Tulare CountyNumber
Under Age 18
Ages 1-439
Ages 5-1248
Ages 13-1527
Ages 16-2068
Total for Ages 20 and Under190
Tuolumne CountyNumber
Under Age 11
Ages 1-43
Ages 5-125
Ages 13-156
Ages 16-2015
Total for Ages 20 and Under30
Ventura CountyNumber
Under Age 126
Ages 1-468
Ages 5-1269
Ages 13-1544
Ages 16-20102
Total for Ages 20 and Under309
Yolo CountyNumber
Under Age 14
Ages 1-423
Ages 5-1228
Ages 13-159
Ages 16-2033
Total for Ages 20 and Under97
Yuba CountyNumber
Under Age 14
Ages 1-411
Ages 5-1211
Ages 13-155
Ages 16-2020
Total for Ages 20 and Under51
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Learn More About Injuries

Measures of Injuries on Kidsdata.org
On kidsdata.org, measures of non-fatal injuries among children and young adults are based on hospital discharges. Data are available as:
Injuries
Child Abuse and Neglect
Deaths
Hospital Use
School Safety
Youth Suicide and Self-Inflicted Injury
Why This Topic Is Important
Millions of children and young adults are treated for non-fatal injuries in U.S. emergency rooms each year, and hundreds of thousands require hospitalization (1). Although most of these injuries are unintentional—resulting from accidents such as falls or car crashes—the intent to cause harm, such as through assault or self-injury, accounts for a large and growing share of youth injury hospitalizations nationwide (1). For some young people, injuries can lead to chronic pain, permanent disability, mental health problems, and decreased ability to participate in educational and social activities (2). Family members often must care for an injured child, which can cause stress and lost income (2). Considering medical and other expenses, work loss, and reduced quality of life, non-fatal injuries among U.S. children and young adults under age 25 are estimated to cost more than $545 billion per year (3).

Injuries caused by firearms, which may be intentional or unintentional, disproportionately affect young people—particularly adolescents, males, and youth of color (4, 5). The need for public health efforts aimed at preventing youth firearm injuries and violence, while addressing inequities across communities, is urgent (4, 5).
For more information, see kidsdata.org’s Research & Links section.

Sources for this narrative:

1.  Centers for Disease Control and Prevention. (n.d.). WISQARS: Nonfatal injury data. Retrieved from: https://www.cdc.gov/injury/wisqars/nonfatal.html

2.  Jones, S., et al. (2021). The impact of injury: The experiences of children and families after a child's traumatic injury. Clinical Rehabilitation, 35(4), 614-625. Retrieved from: https://journals.sagepub.com/doi/10.1177/0269215520975127

3.  Peterson, C., et al. (2021). Economic cost of injury — United States, 2019. Morbidity and Mortality Weekly Report, 70(48), 1655-1659. Retrieved from: https://www.cdc.gov/mmwr/volumes/70/wr/mm7048a1.htm

4.  Lee, L. K., et al. (2022). Firearm-related injuries and deaths in children and youth: Injury prevention and harm reduction. Pediatrics, 150(6), e2022060070. Retrieved from: https://publications.aap.org/pediatrics/article/150/6/e2022060070/189686/Firearm-Related-Injuries-and-Deaths-in-Children

5.  Naik-Mathuria, B. J., et al. (2023). Defining the full spectrum of pediatric firearm injury and death in the United States: It is even worse than we think. Annals of Surgery 278(1), 10-16. Retrieved from: https://journals.lww.com/annalsofsurgery/fulltext/2023/07000/defining_the_full_spectrum_of_pediatric_firearm.3.aspx
How Children Are Faring
In 2021, there were 1,315 hospital discharges for non-fatal firearm-related injuries among California young people under age 25—a rate of 10.1 hospitalizations per 100,000 youth. This figure is up from 2019 (7.9 per 100,000) but not as high as in 2016 (10.5 per 100,000), the first year for which comparable data are available. Twenty California counties recorded more than 10 youth hospitalizations related to firearms in 2021, with injury rates ranging from fewer than 4 per 100,000 (Orange) to more than 25 per 100,000 (Solano).

Across years with data, older teens and young adults experience higher rates of firearm injury when compared with younger age groups, yet hospitalization rates among children under age 15 statewide have been climbing steadily, doubling between 2016 and 2021. Young males in California were hospitalized for firearm injuries at seven and a half times the rate of their female counterparts in 2021 (17.4 vs. 2.3 per 100,000), while the rate of discharge among African American/black youth (52.3 per 100,000) was almost five times higher than for Hispanic/Latino youth (10.9 per 100,000), almost 20 times higher than white youth (2.7 per 100,000), and almost 35 times higher than for Asian youth (1.5 per 100,000).

The rate of overall injury hospitalization among California young people ages 20 and under was 214 per 100,000 in 2015, down from 484 per 100,000 in 1991—a difference that amounts to more than 23,000 fewer discharges for non-fatal injuries statewide. Across counties with data in 2013-2015, injury hospitalization rates ranged from 133 (San Luis Obispo) to 347 (Tuolumne) per 100,000.

Between 1991 and 2015, statewide discharge rates for unintentional injuries, which accounted for a majority of injury hospitalizations among children and young adults ages 0-20, also dropped by more than 50% overall and in all age groups but infants ages under age 1, whose rates fell less than 20%. In 1991 infants had the second lowest rate of discharge for unintentional injuries among age groups (298 per 100,000), whereas by 2012 they had the highest (249 per 100,000). By contrast, rates of discharge for intentional injuries consistently are highest among teens ages 16-20 (108 per 100,000 in 2015), followed by children ages 13-15 (80 per 100,000 in 2015).
Policy Implications
Most childhood injuries are unintentional and preventable, and many can be addressed by policies and programs focused on safety. Intentional injuries, usually occurring as a result of assault or self-harm, also can be prevented through policies focused on social determinants of health and multipronged approaches that strengthen individuals, families, schools, and communities (1, 2, 3, 4).

Injuries involving firearms, whether intentional and unintentional, are a growing public health crisis disproportionately affecting male youth of color (1, 5).

In addition to the lasting physical and mental health effects that injuries can have on those impacted directly, including disabilities and psychological trauma, childhood injuries in the U.S. cost society hundreds of billions of dollars annually (5, 6, 7).

Policy and program options that could prevent injuries among young people and reduce disparities across youth groups include:
  • Educating families on firearm safety laws and on preventing children's exposure to other lethal means such as medications and to household dangers such as windows and stoves (1, 8, 9)
  • Advocating for comprehensive, multisector approaches to youth firearm injury prevention, integrating public safety policies and regulations, coordinated hospital-based programs, and community violence intervention programs (1, 5)
  • Promoting community development measures to ''clean and green'' neighborhood spaces, particularly in under-resourced areas, as these efforts are linked to decreased violence (1)
  • Addressing root causes of violence and firearm injury disparities by strengthening social, economic, and education opportunities for youth and families; e.g., ensuring that adequate safety net programs and affordable housing are available to families in need (1, 4)
  • Promoting safe, stable, and caring family relationships; as part of this, supporting evidence-based approaches—such as home-visiting programs—that provide parents and caregivers with training and support (4, 10)
  • Supporting research-based, cross-sector strategies to promote positive emotional health for youth and families, including routine, accessible, and culturally appropriate mental health screening and services (3)
  • Promoting school policies that foster a positive school climate—where students feel safe, connected, and supported at school—which is associated with lower levels of student violence and high-risk behavior, including substance use (2, 4)
  • Offering youth meaningful opportunities to work and learn outside of school, along with connections to caring adults, through mentoring and other community programs (2, 4)
  • Improving motor vehicle safety—e.g., through continued investments in the comprehensive Safe Systems strategy—while strengthening and promoting awareness of laws concerning car seats, seat belts, graduated driver licensing systems, and drunk or distracted driving (11, 12)
  • Expanding non-fatal firearm injury surveillance, researching effective approaches to prevention, and advancing understanding of risk and protective factors (1, 5)
For more information, see kidsdata.org’s Research & Links section. Also see Policy Implications on kidsdata.org under Child Abuse and Neglect, Deaths, Hospital Use, and Youth Suicide and Self-Inflicted Injury.

Sources for this narrative:

1.  Lee, L. K., et al. (2022). Firearm-related injuries and deaths in children and youth: Injury prevention and harm reduction. Pediatrics, 150(6), e2022060070. Retrieved from: https://publications.aap.org/pediatrics/article/150/6/e2022060070/189686/Firearm-Related-Injuries-and-Deaths-in-Children

2.  Joshi, S. V., et al. (n.d.). K-12 toolkit for mental health promotion and suicide prevention. HEARD Alliance. Retrieved from: https://www.heardalliance.org/help-toolkit

3.  National Academies of Sciences, Engineering, and Medicine. (2022). Responding to the current youth mental health crisis and preventing the next one. National Academies Press. Retrieved from: https://nap.nationalacademies.org/catalog/26669/responding-to-the-current-youth-mental-health-crisis-and-preventing-the-next-one

4. Centers for Disease Control and Prevention. (2022). Preventing youth violence. Retrieved from: https://www.cdc.gov/violenceprevention/youthviolence/fastfact.html

5.  Naik-Mathuria, B. J., et al. (2023). Defining the full spectrum of pediatric firearm injury and death in the United States: It is even worse than we think. Annals of Surgery 278(1), 10-16. Retrieved from: https://journals.lww.com/annalsofsurgery/fulltext/2023/07000/defining_the_full_spectrum_of_pediatric_firearm.3.aspx

6.  Peterson, C., et al. (2021). Economic cost of injury — United States, 2019. Morbidity and Mortality Weekly Report, 70(48), 1655-1659. Retrieved from: https://www.cdc.gov/mmwr/volumes/70/wr/mm7048a1.htm

7.  Jones, S., et al. (2021). The impact of injury: The experiences of children and families after a child's traumatic injury. Clinical Rehabilitation, 35(4), 614-625. Retrieved from: https://journals.sagepub.com/doi/10.1177/0269215520975127

8.  California Department of Justice, Office of Gun Violence Prevention. (n.d.). Firearm safety laws. Retrieved from: https://oag.ca.gov/ogvp/laws

9.  Head Start Early Childhood Learning and Knowledge Center. (2023). Injury prevention starts at home. U.S. Department of Health and Human Services. Retrieved from: https://eclkc.ohs.acf.hhs.gov/publication/injury-prevention-starts-home

10.  Centers for Disease Control and Prevention. (n.d.). Preventing child maltreatment through the promotion of safe, stable, nurturing relationships between children and caregivers. Retrieved from: https://www.cdc.gov/ViolencePrevention/pdf/CM_Strategic_Direction--Long-a.pdf

11.  American College of Emergency Physicians. (2022). Motor vehicle safety: Policy resource and education paper. Retrieved from: https://www.acep.org/siteassets/new-pdfs/preps/motor-vehicle-safety.pdf

12.  Ehsani, J. P., et al. (2023). The future of road safety: Challenges and opportunities. Milbank Quarterly, 101(Suppl. 1), 613-636. Retrieved from: https://onlinelibrary.wiley.com/doi/10.1111/1468-0009.12644
Websites with Related Information
Key Reports and Research
County/Regional Reports
More Data Sources For Injuries