In 1981, data show that for all Canada in 1980, 570 males and 15 females 17-years-old or under were confined in an adult penitentiary or other correctional facility. Of these, 134 were under the age of majority in the province in which they were incarcerated. This latter group of children were in adult institutions, although every province has laws forbidding this practice. However, provinces also provide exceptions for such placement: dangerousness, commission of a serious offense, or trial in adult court. There also was some evidence that some children are detained briefly in local lockups and jails. Of voluntary agency respondents, 75 percent were not aware of any occurrence of this problem in their region; fewer than 20 of this problem in their region; fewer than 20 children under the age of majority were identified by all responding agencies. Results suggest that the imprisonment of children in adult correctional institutions is not a ubiquitous problem in Canada, nor does it occur with sufficient frequency to be viewed as a problem. 3 tables.