Striking a balance between reducing water leakage and controlling associated costs is essential for effective water management. This research examines the equilibrium needed to optimize Casablanca’s water distribution system by calculating key economic factors such as the Economic Frequency of Intervention, Economic Percentage of System Inspection, Economic Unreported Real Losses, Annual Budget for Intervention costs, and Economic Level of Leakage. Using Casablanca-specific data, these parameters are calculated to guide decision-making, optimize resource use, and support sustainable water management. The study reveals that the vast water distribution system in the Moroccan city of Casablanca can be enhanced by balancing intervention requirements with economic factors. The calculated Economic Intervention Frequency is 6.8 years, the Economic Percentage is 14.7%, the Economic Unreported Real Losses amount to 1,784,342 m3/year, the Annual Budget for Intervention is 10,706,054 dh, and the Economic Level of Leakage is 35.6 m3/connection/year. Additionally, the research compares these results with findings from Austria and Spain, employing similar methodologies, aiming to gain insights. The ultimate aim is to enhance efficiency and reduce costs associated with leakage control in Casablanca’s water network.