Home Crime in the U.S. 2011 Crime in the U.S. 2011 Data Decs Table 12 Data Declaration

Table 12 Data Declaration

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Crime Trends, by Population Group, 2010-2011

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

General comments

  • This 2-year trend table provides the number of offenses for 2010 and 2011 and the percent change between these 2 years, listed by 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.
  • Suburban areas include law enforcement agencies in cities with less than 50,000 inhabitants and county law enforcement agencies that are within an MSA. 
  • Suburban areas exclude all metropolitan agencies associated with a principal city.  The agencies associated with suburban areas also appear in other groups within this table.

Methodology

  • The data used in creating this table were from all law enforcement agencies submitting at least 6 common months of complete offense reports for 2010 and 2011.
  • A crime trend represents the percentage change in crime based on data reported in a prior equivalent period.  In calculating trends, the UCR Program includes only common reported months for individual agencies. 

Population groups

The UCR Program uses the following population group designations:

Population Group

Political Label

Population Range

I

City

250,000 and more

II

City

100,000 to 249,999

III

City

50,000 to 99,999

IV

City

25,000 to 49,999

V

City

10,000 to 24,999

VI1, 2

City

Less than 10,000

VIII (Nonmetropolitan County) 2

County

N/A

IX (Metropolitan County) 2

County

N/A

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.