Water resources are exhausting around the world owing to abundant issues like massive population, and the unconcerned behaviour of people. The majority of people have an inadequate supply of water in Pakistan. Against the backdrop of such a situation, this study examines how demographic determinants impact the attitude of people to conserve water at slum households in Lahore. Precisely, the study attempts to elucidate how the difference in marital status, occupation, family size, residential type impacts the attitude of people towards water conservation. A sample of 200 respondents was selected through a convenient sampling technique for data collection from a field survey. A significant difference was found between income, marital status, size of houses, and attitude, while no difference was enlisted between attitude, occupation, and size of the family. There should be a proper water policy by the government with a major emphasis on conservation and sustainability. All people should take significant steps to save water in day-to-day water practices like hand washing, soap application by turning off the water taps. Public awareness programs on how to save water should be planned.