Diabetes management in South African communities has been challenging due to limited access to healthcare services and resources. The study employed a quasi-experimental design involving baseline assessments followed by a year-long intervention period. Participants were randomly assigned to either an intervention group or a control group. While the mean HbA1c levels decreased from 8.5% to 7.2% in the intervention group (p < 0.05), no significant changes were observed in the control group, indicating a positive effect of the programme on adherence and HbA1c control. The community-based diabetes management programme demonstrated effectiveness in improving HbA1c levels among participants when compared to usual care. Further research should explore scalability and cost-effectiveness of such interventions, as well as their impact over longer periods. Diabetes Management, Community-Based Interventions, HbA1c Control, South Africa Treatment effect was estimated with $\text{logit}(p_i)=\beta_0+\beta^\top X_i$, and uncertainty reported using confidence-interval based inference.