Community-based water supply projects have been implemented in various parts of northern Ghana to improve access to clean drinking water and enhance livelihoods. The analysis employs quantitative data from surveys conducted in and , covering 50 randomly selected villages. Data was analysed using regression models to assess project impacts. A significant proportion (75%) of households reported increased income due to improved water access, with an average increase of $40 per month in earnings. Community-based water supply projects have positively influenced economic activities and poverty levels among the studied communities in northern Ghana. Further investment should be directed towards maintenance and expansion of existing projects to sustain their benefits over time.