Staff from Vera’s Center on Sentencing and Corrections and Cost-Benefit Analysis Unit developed a methodology to calculate the taxpayer cost of prisons, including costs outside states’ corrections budgets. Among the 40 states that participated in a survey, the cost of prisons was $39 billion in fiscal year 2010, $5.4 billion more than what their corrections budgets reflected. States’ costs outside their corrections departments ranged from less than 1 percent of total prison costs in Arizona to as much as 34 percent in Connecticut. The full report provides the taxpayer cost of incarcerating a sentenced adult offender to state prison in 40 states, presents the methodology, and concludes with recommendations about steps policy makers can take to safely rein in these costs. Fact sheets provide details about each of the states that participated in Vera’s survey.