What percent of federal and state prisoners are there for drug offenses?

16 May , 2014  

This data is available here (file fjs10f18.cvs).
The Federal prison population was about 17 percent of the state prison population in 2011 (Appendix Table 1). In state prisons was a much smaller percent of the population there for drug offenses (about 17 percent in 2011). Combining state and federal prison populations together places the total prison population incarcerated for drug offenses at 21 percent.