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  1. † Confinement rates use the average daily population (ADP) in state and local correctional facilities in the given calendar year. This includes individuals who were arrested and sentenced prior to that calendar year, as most sentences span several years. Thus, counties often house more individuals in correctional facilities than they have felony arrests, in any given year. Counties may experience no felony arrests in a given year, but still have residents serving time in correctional facilities. In addition, some counties do not have institutional facilities locally. In these cases, the rate value is not calculable, because the divisor equals 0.
  2. ‡ Counties with populations of less than 100,000 residents sometimes generate extreme anomalous rates that distort statewide and county trends. In these instances, the scale has been manually adjusted to compensate for the anomalous county rates. Hover over the county in the left side panel to see actual rate value.

About

Center on Juvenile and Criminal Justice

Since 1985, CJCJ has conducted premier research and policy analysis promoting more effective approaches to criminal and juvenile justice policies, which further long-term public safety. CJCJ has published numerous reports on topics ranging from juvenile justice reform to analyses of drug policy enforcement.

In 2009, CJCJ developed the California Sentencing Institute as the foundation for data and research driven commentary on the broader public policy dialogue. The interactive map presents detailed crime and incarceration numbers, rates, and trends for California and each of its 58 counties. This resource is designed to provide comprehensive analysis of sentencing policies and practices across the state.

Download data   More about this project »

Sources

  • Offender Information Services Branch, California Department of Corrections and Rehabilitation, Characteristics of Inmate Population (December 31). Sacramento, CA: CDCR.
  • California Criminal Justice Statistics Center, California Department of Justice. California Criminal Justice Profiles. Sacramento, CA: DOJ.
  • California Board of State and Community Corrections. Juvenile Detention Profiles. Jail Profile Surveys. Sacramento, CA: BSCC.
  • US Census Bureau, US Department of Commerce. 2010 Census, California, Summary File 3.
  • United States Census Bureau. American Community Survey 5-year estimates, 2006–2010. Washington, DC: Department of Commerce.
  • Department of Finance, Demographic Research Unit. E-1 Population Estimates for Cities, Counties and the State with Annual Percent Change—January 1, 2009 and 2010. Sacramento, CA: State of California.
  • California Division of Juvenile Justice. Characteristics of the Division of Juvenile Justice Population, December. Sacramento, CA: DJJ.
  • California Division of Juvenile Justice. First Commitment Characteristics. Calendar Year. Sacramento, CA: DJJ.
  • California Center for Health Statistics. Death Public Use File. Calendar Year. Sacramento, CA: CHS.
  • California Department of Social Services. Child Welfare Services Reports for California. Berkeley, CA: University of California, Berkeley Center for Social Services Research
  • Chief Probation Officers of California. CPOC Fiscal Year Probation Surveys. Sacramento, CA: CPOC.

Please note: Each year, every county submits their data to the official statewide databases maintained by appointed governmental bodies. While every effort is made to review data for accuracy and to correct information upon revision, CJCJ cannot be responsible for data reporting errors made at the county, state, or national level.