"The custody incarceration rate for black males was 4,618 per 100,000. Hispanic males were incarcerated at a rate of 1,747 per 100,000. Compared to the estimated numbers of black, white, and Hispanic males in the U.S. resident population, black males (6 times) and Hispanic males (a little more than 2 times) were more likely to be held in custody than white males. At midyear 2007 the estimated incarceration rate of white males was 773 per 100,000.
"Across all age categories, black males were incarcerated at higher rates than white or Hispanic males. Black males ages 30 to 34 had the highest custody incarceration rate of any race, age, or gender group at midyear 2007."
Sabol, William J., PhD, and Couture, Heather, Bureau of Justice Statistics, Prison Inmates at Midyear 2007 (Washington, DC: US Department of Justice, June 2008), NCJ221944, p. 7.