Background: Stunting is a growth disorder due to the accumulation of chronic malnutrition so that children's growth is shorter than their age, and causes permanent, long-term effects and impacts between generations. Stunting is a significant health problem in Indonesia and even in the world. The prevalence of stunting in children aged <5 years globally in 2020 is 22% (149.2 million), while the prevalence of stunting in Indonesia in 2021 is 24.4%, and in Maros Regency, it is 37.5%. This study aims to determine exclusive risk factors, family income, family food security, and the mother's knowledge of stunting in the working area of the Tanralili Maros Health Center. Methods: The type of research is an observational study with a case-control study design. The population in this study were infants under two years, totaling 139. The number of samples in this study was 64 respondents with a ratio of 1:1, consisting of 32 cases and 32 controls, taken by random sampling. Data collection using a questionnaire. Univariate and bivariate data analysis, with the Odds Ratio (OR) test. Results: The results of this study indicate that children under two years of age are not exclusive breastfeeding OR = 1.623 (95% CI 0.528 – 4.991), low family income OR = 1.137 (95% CI 0.421 – 3.068), and inadequate family food security OR = 2.113 (95% CI 0.620 – 7.204) and mother's lack of knowledge OR 1.137 (95% CI 0.421 – 3.068) are risk factors for stunting. Conclusions: The conclusions from this study indicate that breastfeeding is not exclusive; low family income, inadequate food security, lack of maternal knowledge are risk factors for stunting. Further research is recommended to provide interventions to increase health literacy, especially regarding the use of local food. Keywords: stunting, breastfeeding, family income, food security, and knowledge