Custom-made supporting information systems for community-based flood risk management were developed. These systems were designed to satisfy the residents' demands through the implementation of risk communication. To extend this supporting system into integrated supporting system for community-based flood risk management, the systems were combined with an evacuation support plan for individual people requiring assistance. Fundamental evacuation data of people requiring assistance for episodic disasters were obtained and analyzed by conducting the evacuation drill for virtual disaster scenario. The supporting systems were found to be effective for enhancement of residuals' consciousness for both self-reliance and mutual aid.