(Educational Level of Prisoners) "With the emphasis on law enforcement over education, it is no surprise that according to the 2003 National Assessment of Adult Literacy Prison Survey, 37 percent of people in U.S. prisons had not finished high school. Only 4 out of 10 (41 percent) had a high school education or GED equivalent; 74 percent had parents who had a high school education or less; and 26 percent had parents who did not finish high school.165"

Source

Lyons, Sarah & Walsh, Nastassia, "Money Well Spent: How positive social investments will reduce incarceration rates, improve public safety, and promote the well-being of communities," Justice Policy Institute (Washington, DC: September 2010), p. 31.
http://www.justicepolicy.org/…