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Teen Births


Teen Births, by Age of Mother: 2010 See Source and Notes
(Age of Mother: All)

United States Rate per 1,000
Under 15 N/A
15 - 17 N/A
18 - 19 N/A

California Rate per 1,000
Under 15 0.3
15 - 17 15.2
18 - 19 48.6
Alameda County Rate per 1,000
Under 15 LNE
15 - 17 9.9
18 - 19 37.4
Alpine County Rate per 1,000
Under 15 LNE
15 - 17 LNE
18 - 19 LNE
Amador County Rate per 1,000
Under 15 LNE
15 - 17 LNE
18 - 19 LNE
Butte County Rate per 1,000
Under 15 LNE
15 - 17 10.5
18 - 19 34.6
Calaveras County Rate per 1,000
Under 15 LNE
15 - 17 LNE
18 - 19 39.8
Colusa County Rate per 1,000
Under 15 LNE
15 - 17 LNE
18 - 19 58.2
Contra Costa County Rate per 1,000
Under 15 LNE
15 - 17 10.7
18 - 19 31.9
Del Norte County Rate per 1,000
Under 15 LNE
15 - 17 LNE
18 - 19 102.2
El Dorado County Rate per 1,000
Under 15 LNE
15 - 17 4.9
18 - 19 25.1
Fresno County Rate per 1,000
Under 15 0.6
15 - 17 27.5
18 - 19 81.1
Glenn County Rate per 1,000
Under 15 LNE
15 - 17 LNE
18 - 19 57.1
Humboldt County Rate per 1,000
Under 15 LNE
15 - 17 9.4
18 - 19 45.8
Imperial County Rate per 1,000
Under 15 LNE
15 - 17 28.5
18 - 19 84.1
Inyo County Rate per 1,000
Under 15 LNE
15 - 17 LNE
18 - 19 LNE
Kern County Rate per 1,000
Under 15 LNE
15 - 17 28.8
18 - 19 96.0
Kings County Rate per 1,000
Under 15 LNE
15 - 17 24.9
18 - 19 82.8
Lake County Rate per 1,000
Under 15 LNE
15 - 17 21.1
18 - 19 71.3
Lassen County Rate per 1,000
Under 15 LNE
15 - 17 LNE
18 - 19 57.8
Los Angeles County Rate per 1,000
Under 15 0.3
15 - 17 14.8
18 - 19 45.6
Madera County Rate per 1,000
Under 15 LNE
15 - 17 27.0
18 - 19 82.9
Marin County Rate per 1,000
Under 15 LNE
15 - 17 6.5
18 - 19 15.1
Mariposa County Rate per 1,000
Under 15 LNE
15 - 17 LNE
18 - 19 LNE
Mendocino County Rate per 1,000
Under 15 LNE
15 - 17 12.8
18 - 19 62.1
Merced County Rate per 1,000
Under 15 LNE
15 - 17 24.6
18 - 19 69.6
Modoc County Rate per 1,000
Under 15 LNE
15 - 17 LNE
18 - 19 LNE
Mono County Rate per 1,000
Under 15 LNE
15 - 17 LNE
18 - 19 LNE
Monterey County Rate per 1,000
Under 15 LNE
15 - 17 29.8
18 - 19 79.0
Napa County Rate per 1,000
Under 15 LNE
15 - 17 10.6
18 - 19 34.5
Nevada County Rate per 1,000
Under 15 LNE
15 - 17 LNE
18 - 19 22.8
Orange County Rate per 1,000
Under 15 0.3
15 - 17 11.8
18 - 19 35.2
Placer County Rate per 1,000
Under 15 LNE
15 - 17 5.3
18 - 19 22.5
Plumas County Rate per 1,000
Under 15 LNE
15 - 17 LNE
18 - 19 67.3
Riverside County Rate per 1,000
Under 15 0.3
15 - 17 15.4
18 - 19 50.6
Sacramento County Rate per 1,000
Under 15 LNE
15 - 17 12.6
18 - 19 52.0
San Benito County Rate per 1,000
Under 15 LNE
15 - 17 LNE
18 - 19 29.2
San Bernardino County Rate per 1,000
Under 15 0.4
15 - 17 18.6
18 - 19 63.6
San Diego County Rate per 1,000
Under 15 0.3
15 - 17 13.3
18 - 19 48.0
San Francisco County Rate per 1,000
Under 15 LNE
15 - 17 7.8
18 - 19 31.9
San Joaquin County Rate per 1,000
Under 15 LNE
15 - 17 16.5
18 - 19 58.1
San Luis Obispo County Rate per 1,000
Under 15 LNE
15 - 17 13.7
18 - 19 24.8
San Mateo County Rate per 1,000
Under 15 LNE
15 - 17 9.5
18 - 19 26.0
Santa Barbara County Rate per 1,000
Under 15 LNE
15 - 17 23.4
18 - 19 55.2
Santa Clara County Rate per 1,000
Under 15 0.4
15 - 17 11.0
18 - 19 32.3
Santa Cruz County Rate per 1,000
Under 15 LNE
15 - 17 19.7
18 - 19 41.4
Shasta County Rate per 1,000
Under 15 LNE
15 - 17 13.0
18 - 19 49.7
Sierra County Rate per 1,000
Under 15 LNE
15 - 17 LNE
18 - 19 LNE
Siskiyou County Rate per 1,000
Under 15 LNE
15 - 17 LNE
18 - 19 60.3
Solano County Rate per 1,000
Under 15 LNE
15 - 17 12.0
18 - 19 38.2
Sonoma County Rate per 1,000
Under 15 LNE
15 - 17 11.4
18 - 19 33.6
Stanislaus County Rate per 1,000
Under 15 LNE
15 - 17 16.4
18 - 19 58.3
Sutter County Rate per 1,000
Under 15 LNE
15 - 17 13.8
18 - 19 45.4
Tehama County Rate per 1,000
Under 15 LNE
15 - 17 18.8
18 - 19 77.3
Trinity County Rate per 1,000
Under 15 LNE
15 - 17 LNE
18 - 19 LNE
Tulare County Rate per 1,000
Under 15 LNE
15 - 17 31.0
18 - 19 91.9
Tuolumne County Rate per 1,000
Under 15 LNE
15 - 17 LNE
18 - 19 31.2
Ventura County Rate per 1,000
Under 15 LNE
15 - 17 14.6
18 - 19 50.6
Yolo County Rate per 1,000
Under 15 LNE
15 - 17 15.8
18 - 19 18.5
Yuba County Rate per 1,000
Under 15 LNE
15 - 17 16.7
18 - 19 79.8

Definition: Number of births per 1,000 young women, by age of mother.

Data Source: California Dept. of Public Health, Center for Health Statistics, Birth Statistical Master Files; California Dept. of Finance, Race/Ethnic Population with Age and Sex Detail, 1990-1999, 2000-2050, http://www.dof.ca.gov (Mar. 2012); Centers for Disease Control & Prevention, Natality data on WONDER (Mar. 2012).

Footnote: The county-level data reflect the mother's county of residence, not the county in which the birth occurred. LNE (Low Number Event) refers to data that have been suppressed because there were fewer than 20 cases. N/A means that data are not available.

Learn More About this Topic

Measures of Teen Births on Kidsdata.org

On kidsdata.org, data for teen births (overallby age of mother, and by race/ethnicity) are provided as numbers and rates (i.e., the number of births per 1,000 adolescent girls, ages 15-19).

Why This Topic Is Important

Infants of teen mothers are at higher risk for physical, social, and emotional challenges than infants of mothers in their 20s and early 30s (1). Teen mothers are more likely to have babies born prematurely or with low birthweight. They also are more likely to have babies who die in infancy, compared to mothers in their 20s and 30s (1). Children born to teen mothers are at increased risk for academic and behavioral problems, such as lower math and reading achievement and poorer motor, communication, and social skills (1, 2). In addition, children born to teens are more likely to enter the foster care system and to become teen parents themselves than children born to older mothers (3). Of course, not all children born to teens face these difficulties, and many go on to lead productive and healthy lives.

Giving birth as a teenager also can create disadvantages for the mother and the father. Teen mothers are more likely to become welfare dependent than other teens (1), and teen parenthood for both mothers and fathers is associated with lower educational attainment and lower income levels (4). Fiscal hardship can be compounded by the fact that teen mothers are less likely to be married or stay married, which may mean covering family expenses on their own (1). However, it is important to note that some teen parents are able to manage these challenges successfully, become competent parents, and reach their educational or career goals later in life.

Research estimates that teen births cost society at least $10.9 billion annually, most of which is associated with negative outcomes for the children of teen parents, including increased costs for health care, foster care, incarceration, lost productivity, and tax revenue (1, 5).

See kidsdata.org's Research & Links section for more information about teen births.

Sources for this narrative:

  1. Child Trends. (2010). Teen births. Retrieved from: http://www.childtrendsdatabank.org/?q=node/52
  2. Terry-Humen, E., Manlove, J., & Moore, K. A. (2005). Playing catch-up: How children born to teen mothers fare. Washington, DC: National Campaign to Prevent Teen Pregnancy. Retrieved from: http://www.teenpregnancy.org/works/pdf/PlayingCatchUp.pdf
  3. The National Campaign to Prevent Teen Pregnancy. (2010). Why it matters: Teen pregnancy and child welfare. Retrieved from: http://www.thenationalcampaign.org/why-it-matters/pdf/child_welfare.pdf
  4. U.S. Department of Health and Human Services. (2011). Healthy People 2020: Family planning. Retrieved from: http://healthypeople.gov/2020/topicsobjectives2020/overview.aspx?topicid=13
  5. The National Campaign to Prevent Teen and Unwanted Pregnancy. (2011). Counting it up: The public costs of teen childbearing. Retrieved from: http://www.thenationalcampaign.org/costs/default.aspx

Policy Implications

The U.S. has the highest teen birth rates among leading developed nations (1). Early sexual activity and ineffective or non-use of contraceptives contribute to teen births, as does peer pressure and the perception of a lack of positive alternatives. Children of teen moms are more likely to be born prematurely or at a low birthweight, and they tend to have poorer academic and behavioral outcomes than children born to older mothers (2). Teen mothers also are less likely to complete high school or go to college compared to older mothers (2). (For more information on consequences related to teen births, see "Why This Topic Is Important," above.) Government at all levels—including school districts—as well as the media, parents, and teens can influence teen sexual activity, pregnancy, and births.

According to research and subject experts, policy options that could influence teen births include:

  • Funding and empowering school districts to provide proven, curriculum-based teen pregnancy prevention programs that encourage both delaying sexual activity and informed use of contraception among sexually active teens; programs should be offered during and after school (3, 4)
  • Funding youth development programs that encourage teen girls to think about and plan for their futures (3, 5)
  • Offering service learning opportunities to teens that engage them in their communities and give them positive ways to contribute (3, 5)
  • Funding home visiting and health interventions targeted at preventing subsequent pregnancies for teen mothers (5)

For more policy ideas and research on this topic, see kidsdata.org’s Research & Links section, or visit The National Campaign to Prevent Teen and Unplanned Pregnancy, The Guttmacher Institute, or the California Adolescent Health Collaborative. Also see Policy Implications on kidsdata.org under Low Birthweight and Preterm Births, Teen Sexual Health, Dating and Domestic Violence, High School Dropouts, and Poverty.

Sources for this narrative:

  1. Abma, J. C., et al. (2010). Teenagers in the United States: Sexual activity, contraceptive use, and childbearing, National Survey of Family Growth 2006–2008. Centers for Disease Control and Prevention. Retrieved from: http://www.cdc.gov/nchs/data/series/sr_23/sr23_030.pdf
  2. Child Trends. (n.d.). Teen births. Accessed August 11, 2011 from: http://www.childtrendsdatabank.org/?q=node/52
  3. U.S. Department of Health and Human Services, Office of Adolescent Health. (2010). Programs for replication – Intervention implementation reports. Retrieved from: http://www.hhs.gov/ash/oah/oah-initiatives/tpp/index.html
  4. National Campaign to Prevent Teen and Unplanned Pregnancy. (2011). What works 2011-12: Curriculum-based programs that help prevent teen pregnancy. Retrieved from: http://www.thenationalcampaign.org/resources/pdf/pubs/WhatWorks.pdf
  5. Ball, V., & Moore, K. A. (2008). What works for adolescent reproductive health: Lessons from experimental evaluations of programs and interventions. Child Trends. Retrieved from: http://www.childtrends.org/Files/Child_Trends-2008_05_20_FS_WhatWorksRepro.pdf

How Children Are Faring

The teen birth rate in California decreased by more than 50% between 1995 and 2010, from 62.9 per 1,000 young women ages 15-19 to 29.0. Similarly, teen birth rates declined in all counties with available data in this period. In 2010, county rates ranged from 10.0 to 64.4. The majority of the state’s teen births are to young women ages 18 to 19, consistent with previous years, though statewide rates declined for all age groups (under 15, 15-17, and 18-19) from 1995 to 2010.

Trends among racial/ethnic groups can be compared for the period of 2000-2010 (racial definitions changed in 2000). Teen birth rates in California decreased for all racial/ethnic groups during that time. However, disparities persist. In 2010, the teen birth rate among Hispanic/Latina youth was 45.0 per 1,000, compared to 34.0 for African American/Black, 25.4 for Multiracial, 22.2 American Indian/Alaska Native, 10.9 for white, and 7.3 for Asian/Pacific Islander teens.

Research and Links

Websites with Related Information

Key Reports

County/Regional Reports