This cross-sectional survey compares the risk of mental health problems like poor well-being, complicated and prolonged grief, and mental disorders between young adults experiencing a divorced or non-divorced parent's death. 190 participants were recruited from Facebook via the Danish National Center for Grief. Well-being was measured using WHO-5, prolonged grief using PG-13 and complicated grief using BGQ, and common mental disorders using CMDQ. Findings confirmed deleterious effects on mental health in young adults experiencing parental death, but higher risk, when losing a divorced parent compared to a non-divorced parent, was associated to prolonged grief, complicated grief, bodily distress syndrome, and alcohol misuse.