Background: A psychological problem that often occurs in postpartum mothers is postpartum depression, which typically emerges within a few days or in the first week after giving birth, affecting approximately 10–20% of new mothers and posing significant risks to both maternal well-being and infant care. The aim of this study was to determine the relationship between family support and type of delivery and the incidence of postpartum maternal depression. Method: This type of research is observational research with cross-sectional design. The population in this study were postpartum mothers on day 7-14 with a sample size of 73 The independent variables were family support and type of delivery, the dependent variable was postpartum depression. The instruments used were family support questionnaires, EPDS and medical records. Analysis using the Mann-Whitney Test with a significance level of Asymp.Sig (2-tailed) <0.05. Results: The results showed that out of 73 respondents, a small portion (20.55%) with low levels of family support had a high incidence of postpartum depression, while respondents with CS delivery almost half (35.71%) experienced high depressionThe Spearman Rho test showed a significant correlation between family support and postpartum depression (p = 0.000), while the Mann-Whitney test indicated a significant association between type of delivery and postpartum depression (p = 0.001). Conclusion: This study found a significant association between family support, mode of delivery, and postpartum depression. Enhancing family involvement in maternal care may help prevent postpartum depression.