Social capital in self-help groups has a crucial role in empowerment and welfare of community. By social capital, community could access networks, information, and external resources for their interests. Self-help groups in Mulyorejo and Karangnongko Village play a role in management and distribution system of methane gas from Supit Urang and Paras landfill. However, under self-help group management, the development and sustainability of methane gas utilization program tend to decline. This research aims to evaluate the differences of social capital in community of methane gas users in Mulyorejo Village and Karangnongko Village by using the Social Network Analysis (SNA). The results demonstrate that the rate of participation, density, and centrality in Karangnongko Village community is better than Mulyorejo Village. Additionally, there are no different significant result in the typology of social capital, both study areas are showing bonding social capital.

Keywords : Social Capital, Self-help Group, Methane Gas.