Graphs by PPI staff:
Crime, perceptions of crime and perceptions of crime-fighters
- More handguns means more homicide from handguns (Created: 2012)
- The poor, not the rich, are most often the victims of burglary (Created: 2012)
- Stand Whose Ground? (Created: 2012)
- Growth in the prison population and in citizens' feeling of safety, 1965-2000 (Created: 2003)
- Murder rates by race and gender, 1998 (Created: 2003)
- Confidence in the police, by race (Created: 2003)
- Do the police treat all races fairly?, by race (Created: 2003)
- Burglaries per 1,000 households, by income level (Created: 2003)
Death penalty
- Executions, 1953-2001 (Created: 2003)
- Death row population, 1953-2001 (Created: 2003)
Economics
- Salaries for California teachers and correctional officers, 1996 (Created: 2003)
- Number of justice system employees, 1982-1999 (Created: 2003)
- Minimum wages in the United States, in Haiti and the Federal Bureau of Prisons (Created: 2003)
- Criminal justice system expenditures (Created: 2003)
- Comparison of size of crime control workforce with farming, forestry and fishing (Created: 2003)
- Daily cost to feed prisoners and the average American (Created: 2003)
Incarceration Rates, U.S.
- Incarceration rate, 1925-2008 (Created: 2010)
- Incarceration rate, 1925-2001 (Created: 2003)
International comparisons
- An international incarceration comparison - Blacks in prison in the U.S. and South Africa (Created: 2005)
- U.S. general and prisoner population as a percentage of the world (Created: 2003)
Prison-Based Gerrymandering
- Maryland and Baltimore City: Population, Prisoners and Prison Cells (Created: 2010)
- Connecticut and Hartford: Population, Prisoners and Prison Cells (Created: 2010)
- Connecticut and New Haven: Population, Prisoners and Prison Cells (Created: 2010)
- Seats per legislator, Marion City Council (Created: 2004)
- Number of people per Mansfield Ohio City Council ward (Created: 2004)
- Number of people per Marion Ohio City Council Ward (Created: 2004)
- Where is New York's incarcerated population? (Created: 2004)
- Size of each St. Lawrence County legislative district (Created: 2004)
- Prisoner-count based vote dilution in Mansfield Ohio (Created: 2003)
- Prisoners per 100,000 residents, emphasizing the low rate through the 1980 U.S. Census (Created: 2003)
- New York State: Where is the prison population? (Created: 2002)
Private Prisons
- Private prison population 1987-2001 (Created: 2003)
Race, ethnicity, age, gender & the prison population
- Incarceration rates by gender (Created: 2005)
- Incarcerated males by race (Created: 2005)
- U.S. incarceration rates by race (Created: 2005)
- Young males incarcerated at very high rates (Created: 2005)
- Males are overrepresented in prisons and jails (Created: 2004)
- Racial disparity between U.S. and incarcerated populations (Created: 2004)
- Number of prisoners and jail inmates by gender, 2001 (Created: 2003)
- Complete illiteracy in the prisoner and general populations (Created: 2003)
- Incarceration rates by race and gender, 2000 (Created: 2003)
- Juveniles in adult prisons, by race (Created: 2003)
- Lifetime chance of incarceration, by race (Created: 2003)
- Increases in the African American population in prison and in higher education, 1980-2000 (Created: 2003)
- African American male population in higher education and in prison, 2000 (Created: 2003)
Sentencing Enhancement Zones
- Disproportionate impact of Massachusetts zone law (Created: 2009)
State-Specific
- Differential incarceration rates in Holyoke, Springfield and Massachusetts (Created: 2012)
- Connecticut state incarceration rate, 1973-2008 (Created: 2010)
- Illinois state prisoners, 1970-2000 (Created: 2010)
- Pennsylvania state prisoners, 1980-2000 (Created: 2009)
- Racial disparities in incarceration by state, 2000 (Created: 2004)
- Incarceration rates by race, 2001 (each state) (Created: 2004)
- Percent of Massachusetts adults barred from voting, by race (Created: 2004)
- Blacks are overrepresented in Franklin County, MA jail (Created: 2004)
- Massachusetts' falling crime rate (Created: 2004)
- Pennsylvania's Institutional Populations 1982-2003 (Created: 2003)
- Racial disparities in North Carolina incarceration (color version) (Created: 2003)
- Racial disparities in North Carolina incarceration (grayscale version) (Created: 2003)
- Ohio's corrections budget grew faster than education budget, 1985-2000 (Created: 2003)
- Blacks overrepresented in Ohio prisons (Created: 2003)
- Racial disparities in North Carolina incarceration per 100,000 population (Created: 2003)
- Growth in the New York State prison and drug prisoner populations (Created: 2002)
- New York State prison and general population by race (Created: 2002)