"An estimated 516,900 black males were in state or federal prison at yearend 2014, accounting for 37% of the male prison population (table 10, appendix table 3). White males made up 32% of the male prison population (453,500 prison inmates), followed by Hispanics (308,700 inmates or 22%).
As a percentage of residents of all ages at yearend 2014, 2.7% of black males (or 2,724 per 100,000 black male residents) and 1.1% of Hispanic males (1,090 per 100,000 Hispanic males) were serving sentences of at least 1 year in prison, compared to less than 0.5% of white males (465 per 100,000 white male residents).
On December 31, 2014, black males had higher imprisonment rates than prisoners of other races or Hispanic origin within every age group. Imprisonment rates for black males were 3.8 to 10.5 times greater at each age group than white males and 1.4 to 3.1 times greater than rates for Hispanic males. The largest disparity between white and black male prisoners occurred among inmates ages 18 to 19. Black males (1,072 prisoners per 100,000 black male residents ages 18 to 19) were more than 10 times more likely to be in state or federal prison than whites (102 per 100,000)."