Background: Poor and inadequate drinking water supply are the cause of the high occurrence of water-borne diseases,such as diarrhea and typhoid. These diseases often caused an outbreak among the citizens. This article was a furtheranalysis of data obtained from Basic Health Research (Riskesdas) in 2007 with the aim to figure out the influence of drinkingwater access against the occurrence of diarrhea and typhoid. Methods: the used samples were taken from all samples ofthe 2007 Riskesdas, which had complete data about drinking water supply. The dependent variables were diarrhea andtyphoid, and the independent variables were total water USAge, physical quality of the water, the water access, type offacilities, type of sanitation facilities, hygiene behavior (e. g. hand washing with soap before having and preparing meals,hand washing with soap after defecation, the use of latrine), and characteristic of respondents (educational background,occupation, age, and gender). Analysis was performed by using bivariate and multivariate logistic regression. Results:showed that diarrhea and typhoid were influenced by the difficulty of the access to get water from sources, difficulty levelfor obtaining the water, non physical-standards water, low educational background, behavior of hand washing and latrineusage. Conclusion: was water-borne diseases occured if the access of water was limited, inadequate water's physicalquality and unhigienic behavior.