This study examined the relationship between Kohlberg's moral development theory and social cohesion theory, addressing a critical gap in understanding how individual moral reasoning intersects with collective social integration. Despite extensive scholarship on each framework independently, limited research had explored their potential complementarities, tensions, and integrated implications for both individual development and community functioning. The main objective was to develop an integrated theoretical framework reconciling these perspectives by analyzing their compatibilities and contradictions, investigating how social cohesion influenced moral development progression, and examining how moral development distributions affected cohesion quality. A mixed-methods study was conducted across 45 diverse Ugandan communities between March and September 2024, employing stratified random sampling to ensure variation in community characteristics. The sample comprised 450 adult participants (ages 18-65, M = 34.7 years, 52% female) selected through systematic random sampling with 10 participants per community. Moral development was assessed using the Defining Issues Test-2 (DIT-2), measuring pre-conventional, conventional, and post-conventional reasoning, while social cohesion was evaluated using a validated multidimensional instrument assessing trust, belonging, civic participation, shared values, and social networks. Community-level variables including economic stability, institutional trust, cultural diversity, and population size were obtained from census data and government records. Data analysis employed Pearson correlations, hierarchical multiple regression, and one-way ANOVA with post-hoc comparisons. Results revealed significant relationships between moral development stages and social cohesion dimensions, with conventional moral reasoning showing the strongest positive correlations with cohesion measures (r = .553, p < .01), particularly shared values (r = .587) and sense of belonging (r = .523). Postconventional reasoning demonstrated selective associations, correlating positively with civic participation (r = .392) but weakly with belonging (r = .094) and non-significantly with shared values (r = .012). Pre-conventional reasoning exhibited consistent negative correlations with all cohesion dimensions. Hierarchical regression analysis indicated that moral development stages accounted for 29.8% of variance in social cohesion beyond demographic controls, with conventional reasoning emerging as the strongest predictor (β = .361, p < .01) even after controlling for community context variables. The full model explained 51.2% of cohesion variance, with institutional trust (β = .247) and economic stability (β = .203) among community variables also contributing significantly. ANOVA comparing communities with different moral development profiles revealed large effects (η² = .677), with conventional-dominant communities exhibiting highest overall cohesion (M = 56.84), post-conventional enriched communities showing highest civic participation (M = 58.67), and pre-conventional dominant communities demonstrating severely compromised cohesion across all dimensions (M = 38.42). The study concluded that moral development and social cohesion represented complementary rather than incompatible frameworks, with different developmental stages relating to cohesion in qualitatively distinct ways. Conventional reasoning aligned most naturally with traditional cohesion based on normative consensus, while post-conventional reasoning supported alternative integration through principled civic engagement without uncritical conformity. The findings challenged dichotomous thinking that positioned individual moral autonomy against collective solidarity, instead revealing complex synergies where in optimal communities cultivated moral progression beyond pre-conventional reasoning while accommodating both conventional and post-conventional frameworks. Recommendations emphasized integrating moral development into educational curricula and community development initiatives, recognizing moral reasoning as foundational to social cohesion, and conducting longitudinal and cross-cultural research to advance theoretical integration and practical applications in diverse, pluralistic societies.