To obtain data on the effectiveness of the psychiatric halfway house and to update information about such facilities, 26 recent statistical reports were examined. Only two studies include control group comparisons. In addition to descriptive information, data are reported in terms of employment or school attendance and independent living as contrasted with rehospitalization. Results indicate that a median of approximately 80 per cent of halfway house residents adjusts to community living. Despite differences among halfway houses in resident selection, length of stay, rehabilitative criteria, and nature of follow-up, data suggest that rehospitalization rates are lower after residence in a halfway house. Some cautions are drawn regarding evaluative studies and potential attenuation of halfway house facilities to low-quality custodial care.