The total number of offenders under CDOC supervision during 2006 was 29,837, consisting of 21,438 inmates, 8,186 offenders under parole supervision, and 213 offenders in the Youthful Offender System (Y.O.S.). Population growth and legislative changes affecting corrections in Colorado are discussed in the first section followed by a description of inmate population trends in the second section. Prison sentence and incarceration rates are reviewed, which indicate the sentence rate increased 6.9 percent in 2006 while the incarceration rate increased 4.2 percent. The third section offers information about the characteristics of adult prison admissions, which increased 15.5 percent in 2005 and 7.8 percent in 2006. The average age for commitments in 2005 and 2006 was 32.7 years. During 2006, 13.2 percent of all female commitments were for violent offenses compared to 27.8 percent of all male commitments. The fourth section presents data on the characteristics of prison releases, discussing the types of inmate releases from prison and the length of stay in prison prior to release. The total number of releases increased 8.5 percent between 2005 and 2006. In 2006, 19.8 percent of offender releases were released without parole supervision, down from 23.8 percent of offender releases in 2005. The fifth section describes inmate population characteristics, including types of custody classifications, offense distributions, average sentence lengths and incarceration time for each facility, and the profiles of male and female offenders. The sixth section describes the parole population, which has changed in recent years due to legislative revisions. The average length of stay on parole in Colorado averaged 15.1 months in 2005 and 14.4 months in 2006, down from a high of 15.8 months in 2003. The final section offers data on the Youthful Offender System, including the characteristics of the system, admissions data, sentence averages, and releases and terminations. Tables, appendixes