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Tegal Regency faces flooding problems that come in the rainy season. Especially floods that inundate rural areas. Therefore there is a need for efforts to reduce disaster risk. One of the factors that influence the magnitude of risk is the social vulnerability. This research was conducted to determine the level of social vulnerability of rural areas in Tegal Regency by using Geographic Information Systems (GIS). The method used is the scoring and weighting method. Scoring and weighting were carried out on each indicator, namely population density, dependency ratio, sex ratio, and disabled ratio. The analysis shows that the highest social vulnerability is in Cempaka village in Bumijawa sub-district, namely with the Social Vulnerability Index 0.96, out of 281 villages there are 44 villages included in the high Social Vulnerability Index because above index 0.67, 168 villages are included in the Medium Vulnerability Index because of below 0.67, while 69 villages are included in the classification of the Low Vulnerability Index because they are below 0.37.