We used the Quality of Life Scale to assess quality of life among 107 Norwegians with chronic mental health problems (MHP) from the community health care system versus 1893 general population adults. The groups differed in quality of life, including broader life domains. Age and quality of life were more strongly positively correlated in the MHP group than in the general population. Mental symptoms (measured by the Symptom Checklist-90 Revised) and quality of life were strongly negatively correlated in the MHP group. Services for people with chronic MHP should focus on enhancing quality of life and on its role as an outcome variable.