Table 12 Data Declaration
Table 12 Data Declaration
Crime Trends, by Population Group, 2011-2012
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 2011 and 2012 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 2011 and 2012.
• 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 2012 state growth rates using the U.S. Census Bureau’s 2011 and 2012 provisional state/national population estimates. The FBI then estimated population figures for city and county jurisdictions by applying the 2012 state growth rate to the updated 2011 U.S. Census Bureau data.