Number Of Persons In The US Serving State or Federal Prison Sentences and the US Imprisonment Rate, Yearend 2015

"At yearend 2015, there were 458 prisoners sentenced to more than 1 year in state or federal prison per 100,000 U.S. residents of all ages (table 5). The imprisonment rate for the U.S. population of all ages was the lowest since 1997 (444 per 100,000 U.S. residents, not shown). Among U.S. residents age 18 or older, there were 593 prisoners sentenced to more than 1 year in state or federal prison per 100,000 U.S. adult residents. Both rates decreased since their peak in 2007.
"On December 31, 2015, 1% of adult males living in the United States were serving prison sentences of greater than 1 year. However, this imprisonment rate decreased 3% between yearend 2014 (1,168 per 100,000 adult males) and yearend 2015 (1,131 per 100,000). The rates for female imprisonment in 2015 (64 per 100,000 females of all ages and 82 per 100,000 adult females) both decreased by about 2% from yearend 2014.
"Maine had the lowest imprisonment rate at yearend 2015 (132 per 100,000 residents of all ages), followed by Massachusetts (179) and Minnesota (196) (table 6). Louisiana had the highest imprisonment rate for persons of all ages in 2015 (776 per 100,000 state residents) and adults (1,019 prisoners per 100,000 state residents age 18 or older), followed by Oklahoma (715 per 100,000 state residents of all ages and 948 per 100,000 adult state residents). Seven additional states had imprisonment rates of more than 500 per 100,000 state residents of all ages, including Alabama (611 per 100,000), Mississippi (609), Arizona (596), Arkansas (591), Texas (568), Missouri (530), and Georgia (503)."


E. Ann Carson, PhD, and Elizabeth Anderson. Prisoners In 2015. Washington, DC: US Dept of Justice Bureau of Justice Statistics, Dec. 2016, NCJ250229, p. 8.