This study is an outcome evaluation of a secure unit of one juvenile detention center in the Midwest. The primary purpose of this study was to elucidate the relationship between a secure detention placement and recidivism on a sample of Midwest juvenile offenders. Besides the examination of recidivism of the total sample, this study examined differences between two subsamples of the institutionalized juveniles, those in a treatment program and those in detention only. The importance of demographics, prior admissions, length of stay, frequency of institutional misconduct, and exposure to treatment was examined. Results suggest a significant negative relationship between the age at admission and recidivism, and a positive one between prior admissions and recidivism. Length of stay, institutional misconduct, and treatment did not reach significance. This study did not find support for the effectiveness of juvenile detention in recidivism reduction. Implications of findings and suggestions for future research are discussed.