Water use behaviors, awareness on the water conservation and purification process have an influence on the water consumption of people. Hence, this study assimilates measured water consumption and the data collected in a questionnaire survey to understand the relationship between self-reported water use behaviors and measured water consumption. The study was conducted in four coastal cities in southern Sri Lanka and about 70% of households had alternative water resources. First, self-reported water use behaviors were used to cluster the sample into two clusters. Households reported with highly positive water use behaviors (HPB) were consuming less water than those who with moderately positive water use behaviors (MPB). Positive water use behaviors of HPB group seems to be supported with their higher awareness on the need for water conservation and water treatment process and associated costs. Therefore, this study suggests that increasing awareness on the need of water conservation, underuse of water, water efficient appliances and increasing the awareness on the water treatment and distribution process and cost will help in shifting consumers towards positive water use behaviors.