Home Crime in the U.S. 2011 Crime in the U.S. 2011 Data Decs Table 18 Data Declaration

Table 18 Data Declaration

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Rate:  Number of Crimes per 100,000 Inhabitants by Metropolitan and Nonmetropolitan Counties by Population Group, 2011

The FBI collects these data through the Uniform Crime Reporting (UCR) Program.

General comments

  • This table provides the rate per 100,000 inhabitants and the number of offenses known to law enforcement for violent crimes (murder and nonnegligent manslaughter, forcible rape, robbery, and aggravated assault) and property crimes (burglary, larceny-theft, and motor vehicle theft) for metropolitan and nonmetropolitan county law enforcement agencies submitting 12 months of complete data (except arson) for 2011.  In addition, the table furnishes the number of agencies meeting the criteria for inclusion in this table and provides the estimated population for each population group.
  • Metropolitan counties include sheriffs’ offices and county law enforcement agencies associated with a Metropolitan Statistical Area (MSA).
  • Nonmetropolitan counties include sheriffs’ offices and county law enforcement agencies that are not associated with an MSA.
  • Offenses reported by state police agencies are not included in this table.
  • The FBI publishes only data that conform to UCR data collection guidelines.  For example, the data collection methodology for the offense of forcible rape used by the state UCR Programs administered by the Minnesota Department of Public Safety do not comply with these guidelines, therefore, those data are not available for inclusion in this table.  Instead, the FBI computes the rates by estimating forcible rape offenses for each population group for participating agencies in Minnesota.  The figures are estimated using the national rates for each population group applied to the population by group for Minnesota agencies supplying 12 months of complete data.
  • The UCR Program does not have sufficient data to publish arson offenses in this table.  Information about arson can be found in Arson Tables 1 and 2.


  • The data used in creating this table were from all law enforcement agencies submitting 12 months of complete data (except arson) for 2011.
  • The FBI derived the offense rates by first dividing the aggregated offense counts by the aggregated populations covered by contributing agencies for which 12 months of complete data were supplied and then multiplying the resulting figure by 100,000.

Population groups

The UCR Program uses the following population group designations:

Population Group

Political Label

Population Range



250,000 and more



100,000 to 249,999



50,000 to 99,999



25,000 to 49,999



10,000 to 24,999

VI1, 2


Less than 10,000

VIII (Nonmetropolitan County)2



IX (Metropolitan County)2



1Includes universities and colleges to which no population is attributed.
2Includes state police to which no population is attributed.

Population estimation

The FBI calculated 2011 state growth rates using the U.S. Census Bureau’s 2010 decennial state/national population figures and 2011 provisional state/national population estimates.  The FBI then estimated population figures for city jurisdictions by applying the 2011 state growth rate to the 2010 U.S. Census Bureau data.