Or juvenile detentions, or facilities operated by the Marshall service, the military, or on reservations.
You can try all day long and your efforts won't polish that turd even a little bit.
More fun stats from this link:
According to the U.S. Bureau of Justice Statistics (BJS), 2,266,800 adults were incarcerated in U.S. federal and state prisons, and county jails at year-end 2011 – about 0.94% of adults in the U.S. resident population. Additionally, 4,814,200 adults at year-end 2011 were on probation or on parole. In total, 6,977,700 adults were under correctional supervision (probation, parole, jail, or prison) in 2011 – about 2.9% of adults in the U.S. resident population.
In addition, there were 70,792 juveniles in juvenile detention in 2010.