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Naperville, Illinois Crime Statistics

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

Total Crime

Between 1999 and 2008 there were 24,380 total crimes reported in Naperville, Illinois (893 of them violent). Of the 2,438 crimes that occur a year in Naperville, almost half happen less than a mile from home. On average, someone is a victim of a crime in Naperville, Illinois every 3 hours.

Crime Trends

During the previous 10 years, crime data were available in Naperville, Illinois for all 10 years. Over that interval, reported crime in Naperville increased by 11 percent. Over that same time frame, violent crime increased by 49 percent. Overall, the crime numbers reveal a gradual increase in crime over the last 10 years in Naperville. If the current trend continues, predicted crime numbers could hit nearly three thousand for Naperville, Illinois in 2009.

Crime Trends in Naperville, Illinois (1999-2008)

Remember that these graphs show reported crime figures and some step offs in crime numbers may be the result of changes in reporting, not actual changes in crime rates.

Crime Comparisons

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

Visitors are cautioned against interpreting ranking data to determine 'how dangerous' a certain location is, as many factors, including episodic events, or differences in crime reporting and methodology can skew rankings. Click on the individual graph bars to see crime figures in these locations.

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Crime Data Information

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

  • In 1999-2000, forcible rape figures furnished by the state Uniform Crime Reporting (UCR) Programs administered by the Delaware State Bureau of Investigation and Illinois Department of State Police were not in accordance with national UCR guidelines; therefore, the figures were excluded from the forcible rape, Crime Index total, and Modified Crime Index total categories.
  • Limited data for 1999 were available for Illinois, Kansas, Kentucky, Maine, Montana, and New Hampshire.
  • Limited data for 2000 were available for Illinois, Kansas, Kentucky, and Montana.
  • In 2001, forcible rape figures furnished by the state Uniform Crime Reporting (UCR) Program administered by the Illinois State Police were not in accordance with national UCR guidelines; therefore, the figures were excluded from the forcible rape, Crime Index total, and Modified Crime Index total categories.
  • Limited data for 2001-2003 were available for Illinois and Kentucky.
  • In 2002, forcible rape figures furnished by the state Uniform Crime Reporting (UCR) Program administered by the Illinois State Police were not in accordance with national UCR guidelines; therefore, the figures were excluded from the forcible rape, Crime Index, and Modified Crime Index categories.
  • In 2003, forcible rape figures furnished by the state Uniform Crime Reporting (UCR) Program administered by the Illinois State Police were not in accordance with national UCR guidelines; therefore, the figures were excluded from the forcible rape and violent crime categories.
  • Limited data for 2004-2006 were available for Illinois.
  • In 2004, the data collection methodology for the offense of forcible rape used by the state Uniform Crime Reporting (UCR) Program administered by the Illinois State Police does not comply with national UCR guidelines. Consequently, their figures for forcible rape and violent crime (of which forcible rape is a part) are not included in these graphs.
  • 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 does not comply with national UCR Program guidelines. Consequently, their figures for forcible rape and violent crime (of which forcible rape is a part) are not published in these graphs.
  • In 2007-2008, 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, Illinois and Minneapolis and St. Paul, Minnesota) does not comply with national UCR Program guidelines. Consequently, their figures for forcible rape and violent crime (of which forcible rape is a part) are not published in these graphs.
For more information, and a description of the statistical methods and data algorithms used by RecordsPedia, please visit our methodology section.

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