Sustainable water supply has been the United Nation’s goal as stipulated in Sustainable Development Goals (SDG’s). In 2030, all people must have acess to safe and affordable drinking water. In Salatiga Indonesia, the water supply company (PDAM) can now only serves 65.64% of the city’s population. There are about 11.14% of the population served by community based water supply (CBWS). In line with the SDG’s, The Government of Indonesia’s program to have 100% coverage of water supply. The limitation on PDAM coverage has led the increase number of CBWS. This tendency has raised the question on the sustainability of CBWS. This paper presents the sustainability evaluations of some CBWS in Salatiga using Rapfish method. In the method, sustainability is evaluated using multi-dimensional scalling based on aspects of ecological, technological, social, institutional, and economical. The strategy to improve sustainability is identified using SWOT analysis. The study performed at 4 (four) CBWS at Kecamatan Sidorejo, Salatiga. It represents the CBWS using deep water sources and spring water sources. It shows that all CBWS analysed are barely sustainable on the dimension of ecological, technological, and social. The dimension on institutional and economical are in the status of no sustainability. Therefore, the CBWS need some improvement and reinforcement especially on institutional and economical.