This study investigated the difference in stress levels of stress factors according to the structure or type of family. The relatedness of the ranking of stress factors within and across three family types and the relationship between level of stress and number of years in current family type were also examined. Important aspects of this study were using three family types, using families seeking counseling as the subjects, and investigating numerous stress factors across family types. These research techniques avoided the limitations of previous research which investigated only one family type, thus isolating special stress issues for a certain family type where those special issues actually might not differentiate among family types. Also, considering numerous stress factors at one time, rather than only a few factors, indicated relative levels of stress as well as absolute stresses that families are likely to experience. Targeting families who had sought counseling should give counselors a more realistic view of clients and their problems.