Over Half of Inmates in Prison on June 30, 2013 were Serving Time for Violent Crimes
A primary offense is the most serious crime for which an inmate was convicted and sentenced to prison, based on the statutory degree of the crime. It is called the primary offense because many inmates have multiple offenses for which they are sentenced to prison.
Over half the inmates (52.8%) in prison on June 30, 2013, had a violent primary offense, including murder, sexual assault, robbery, and arson.
Drug offenders, those with primary offenses of sale, manufacture, purchase, trafficking or possession of drugs, comprised 16.9% of prison inmates, decreasing from 19.0% the previous year.
The most common categories of primary offense among inmates on June 30, 2013 were robbery with a weapon (8.8%), burglary of a dwelling (8.5%), and the sale, purchase or manufacture of drugs (8.1%).
For inmates with a primary offense of murder or manslaughter, the average sentence length was 36 years, and their average age at offense was 28.2 years. (Sentences of life, death and more than 50 years were counted as 50 years for these calculation purposes.)
The average sentence length for other primary offense groups were: 23.2 years for sexual offenses, 19.2 years for robbery, and 12.1 years for burglary, all increased from June 30, 2012.
For prison inmates, robbery is the offense type with the youngest average age at offense: 26.4 years.
Comparing Primary Offense Type
For Inmates in Prison on June 30, 2003 and 2013