The tofu industry, as a micro and small enterprise sector, makes an important contribution to food provision and the local economy; however, it also generates liquid and solid waste (tofu dregs/okara) that can pollute the environment if not properly managed. This study aims to analyze the level of community knowledge and attitudes, as well as the relationship between the two, in the management of tofu industry waste in residential areas. This study employed a quantitative approach with a descriptive-analytic crosssectional design involving 257 respondents selected through purposive sampling. Data were collected using knowledge and attitude questionnaires and were analyzed descriptively and inferentially using the ChiSquare test. The results show that community knowledge was dominated by the moderate category, whereas community attitudes were dominated by the high to very high categories. Although respondents had a basic understanding of the impacts of tofu industry waste, their knowledge of solid waste management and the technical aspects of waste treatment remained limited. The Chi-Square test results indicate a significant relationship between knowledge and attitudes, suggesting that increased knowledge contributes to the formation of positive community attitudes. These findings reveal a gap between knowledge and practice; therefore, interventions based on practical education, technical skill enhancement, and community empowerment in waste management are required. A community-based approach is an important strategy for improving the sustainability of tofu industry waste management, for both liquid and solid waste.