The safe, adequate and regular drinking water is essential and fundamental human right. But growing urbanization and population resulted into inadequate and irregular supply of drinking water. The drinking water has price in terms of time, space, quality and quantity. In this book, the water demand is calculated in councils and corporations for population, industry, education institutions, health care units, garages, fire stations, welfare centers, malls and shops. The water supply is depending on number of connections in area, water pressure and time of water. The deficit of drinking water is observed because demand and supply mismatch in corporations and councils. This book provides the positive and negative correlates with total water supply of municipal corporations and councils. The alternative policies are required such as rainwater harvesting, leakages, increasing tariff and metering, water use laws and private investment in drinking water supply. All policies will reduce the present and future deficit in drinking water at some extent. It will promote human and economic development of country.