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Illinois Crime Statistics

This page contains crime numbers for Illinois. You can take a look at the breakdown of crime by type, changes to crime figures over time, and see how Illinois compares to similar locations. If you are interested in seeing public records information for Illinois, you can click the Public Records tab at the top.

Total Crime

Between 1999 and 2008 there were 4,869,102 total crimes reported in Illinois (743,803 of them violent). Of the 486,910 crimes that happen every year in Illinois, nearly one-half occur less than one mile from home. On average, someone is a victim of a crime in Illinois 56 times every hour. This includes 8,523 murders, 41,449 rapes, and greater than three million thefts (including 427,502 auto thefts).

Crime Trends

Over the preceding 10 years, crime data were available in Illinois for all 10 years. During that time frame, reported crime in Illinois has lessened by 23%. During the same interval, violent crime decreased by 31%. On the whole, the crime figures reflect a slight reduction in crime over the last 10 years in Illinois. If the current trend continues, predicted crime numbers could fall to four hundred and twenty-three thousand for Illinois in 2009.

Crime Trends in Illinois (1999-2008)

Keep in mind that these graphs show reported crime numbers and certain sharp changes in crime figures might be the result of changes in reporting, not actual changes in crime rates.

Crime Comparisons

Crime rates per 1,000 population in states like Illinois (1999-2008)

Users are warned against reading into ranking data to decide 'how dangerous' a given location is, as many factors, including episodic events, or variations in crime reporting and methodology can skew rankings. Click on the individual chart bars to see crime numbers in these locations.

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Crime Data Information

Illinois law enforcement agencies report their statistics to the FBI UCR program. The FBI has noted the following deviations from their data quality guidelines:

  • Limited data for 1999 were available for Illinois, Kansas, Kentucky, Maine, Montana, and New Hampshire; therefore, it was necessary that their crime counts be estimated. See Offense Estimation, Appendix I, for details.
  • Limited data for 2000 were available for Illinois, Kansas, Kentucky, and Montana; therefore, it was necessary that their crime counts be estimated. See Offense Estimation, Appendix I, for details.
  • Limited data for 2001 were available for Illinois and Kentucky; therefore, it was necessary that their crime counts be estimated. See Offense Estimation, Appendix I, for details. Offense totals are based on all reporting agencies and estimates for unreported areas.
  • Limited data for 2002 were available. See Offense Estimation, Appendix I, for details. Offense totals are based on all data received from reporting agencies and estimates for unreported areas.
  • Limited data for 2003 were available for Illinois and Kentucky. See Offense Estimation, Appendix I, for details. Although arson data are included in the trend and clearance tables, sufficient data are not available to estimate totals for this offense.
  • Limited data for 2004 were available for Illinois. See Offense Estimation, Appendix I, for details. Although arson data are included in the trend and clearance tables, sufficient data are not available to estimate totals for this offense. Therefore, no arson data are published in these graphs.
  • Limited data for 2005 were available for Illinois. Although arson data are included in the trend and clearance tables, sufficient data are not available to estimate totals for this offense. Therefore, no arson data are published in these graphs.
  • Limited data for 2006-2008 were available for Illinois. See Data Declaration.
  • In 2006, the data collection methodology for the offense of forcible rape used by the Illinois (with the exception of Rockford, Illinois) and the Minnesota state UCR Programs do not comply with national UCR guidelines. Consequently, their figures for forcible rape (with the exception of Rockford, Illinois) have been estimated for inclusion in these graphs. City-level data show the reported female forcible rape crime figure. Although arson data are included in the trend and clearance tables, sufficient data are not available to estimate totals for this offense. Therefore, no arson data are published in these graphs.
  • In 2007, the data collection methodology for the offense of forcible rape used by the Illinois and the Minnesota state UCR Programs (with the exception of Rockford, Illinois, and Minneapolis and St. Paul, Minnesota) does not comply with national UCR guidelines. Consequently, their state figures for forcible rape (with the exception of Rockford, Illinois, and Minneapolis and St. Paul, Minnesota) have been estimated for inclusion in these graphs. City-level data show the reported female forcible rape crime figure. Although arson data are included in the trend and clearance tables, sufficient data are not available to estimate totals for this offense. Therefore, no arson data are published in these charts.
  • In 2008, the data collection methodology for the offense of forcible rape used by the Illinois and the Minnesota state UCR Programs (with the exception of Rockford, IL, and Minneapolis and St. Paul, MN) does not comply with national UCR guidelines. Consequently, their state figures for forcible rape (with the exception of Rockford, IL, and Minneapolis and St. Paul, MN) have been estimated for inclusion in these charts. City-level data provide the reported female forcible rape crime figure. Although arson data are included in the trend and clearance tables, sufficient data are not available to estimate totals for this offense. Therefore, no arson data are published in these charts.
For more information, and a description of the statistical methods and data algorithms used by RecordsPedia, please visit our methodology section.