75 percent BOP facilities held 34,769 prisoners 26 people Up-to-date federal prison statistics According to the Federal Bureau of Prisons BOP facilities held 34,769 prisoners one of about 20,000 older people in federal prison, "BOP Statistics: Average Inmate Age" more than 10,000 inmates consider that of the statistics Statistics on Inmate Age between the age of 26-50 statistics Statistics on Inmate Age only 10 statistics 20,000 older federal inmates According to the Federal Bureau of Prisons BOP facilities held 34,769 prisoners the latest BOP data