The aim of this study was to investigate within-group differences among Danish non-kin adoptees with regard to probability of mental health problems and post-adoption out-of-home care (OHC) placement, with a particular focus on whether adoption age and country of origin mattered. I used Danish registry data on non-kin adoptees born between 1989 and 1994 (N=2922) at the age of 17 and applied bivariate analyses and seemingly unrelated regression to describe associations between non-kin adoptees' adoption characteristics and two outcomes: (a) psychiatric contact and (b) post-adoption OHC. Psychiatric contact and post-adoption OHC co-occurred among non-kin adoptees, and these two life events should be considered jointly. Adoption age mattered equally for the risk of psychiatric contact and OHC, but country of origin mattered more for psychiatric contact than for OHC. Adoption at one year of age and older was associated with an elevated risk of psychiatric contact and OHC. Romanian adoptees had a higher likelihood of psychiatric contact when compared to all the other adoptees, regardless of country of origin. In contrast, adoptees from India had a lower probability of psychiatric contact and of entering OHC compared to all the other adoptees. The heterogeneity in non-kin adoptees' psychiatric contact and OHC in terms of adoption age and country of origin is important to consider in future research, as well as for social workers and clinicians in their role of promoting health and preventing mental health problems.