The study aims to identify the profiles of work-family conflict and work-family facilitation of young unmarried female workers, and to examine the differences in depression and happiness across profiles. The sample of 638 unmarried employed women who were under 40 was a subset of data from the 8th Korean Longitudinal Survey of Women and Families. Using latent profile analysis, good type (61.33%), moderate type (25.88%), and conflicting type (12.79%) were derived. For depression, the moderate type of depression was higher than that of the good type, and the conflicting type was higher than that of the moderate type. On the other hand, the good type of happiness was significantly higher than them of the others. This study is meaningful because it confirmed the necessity of supplementing the existing family-friendly policies for young unmarried workers by finding a subgroup that is likely to be more vulnerable to balance work and family roles.