Maryville, Inc. is the oldest residential addiction treatment center in New Jersey. Serving the tri-state area, the residential facility has 76 beds including detoxification services. The average length of treatment is 20 days, sufficient to begin the recovery process, but with the expectation that clients will continue in treatment in outpatient settings. Located on 40 wooded acres in rural Gloucester County, Maryville provides a serene and safe setting for adults 18 and over with substance use disorders.We also have 2 additional locations with Intensive Outpatient and Outpatient Services. We offer patients a peaceful, natural environment conducive to the full recovery of body, mind and spirit.