Polls and Statistics

If you need some opinon poll numbers or statistics, the resources below may be useful. It is a good idea to get numbers and statistics well before you finish your research. The number you need may not have been collected.

Statista
Quantitative data, statistics, infographics, and related information compiled from market research institutes, trade publications, scientific journals, and government databases.

USA.GOV
Can cross search many federal and judicial agencies for statistics and numbers.
Sourcebook of Criminal Justice Statistics
Data on criminal justice in the United States. Characteristics of the criminal justice systems, public attitudes toward crime, known offenses, characteristics and distribution of persons arrested, judicial processing of defendants, persons under correctional supervision
Uniform Crime Reports
Statistics on and analysis of violent crimes of murder, manslaughter, forcible rape, robbery, and aggravated assault and the property crimes of burglary, larceny-theft, motor vehicle theft, arson, and hate crimes as reported by state and local law enforcement agencies. Covers crime trends and provides statistics for nation, region, state, county, and city.
Bureau of Justice Statistics
The Bureau of Justice Statistics collects, analyzes, publishes, and disseminates information on crime, criminal offenders, victims of crime, and the operation of justice systems at all levels of government. These data are critical to federal, state, and local policymakers in combating crime and ensuring that justice is both efficient and evenhanded.
iPOLL (Roper Center Services at Vanderbilt)
Includes full-text, question-level summary data from public opinion polls from major survey research organizations in the United States, including the Gallup Poll, Roper Center for Public Opinion Research, Harris, the National Opinion Research Center at the University of Chicago, ABC News, CBS News, NBC News, the Los Angeles Times, The New York Times, USA Today, The Washington Post, and the Associated Press.