Effect of Non-Revenue Water (NRW) on the general functioning of Water Utility in Doka District of Kaduna North LGA, Kaduna State. Questionnaires and Key Informant Interviews (KII) were administered using purposive sampling technique, inventory of bursts/ leakages were taken over the period of the study within the study area, To estimate the range nonrevenue water has affected the general functioning of the water utility in Doka District was gotten from a combination of data collated from the administered questionnaires and responses from KII and review of Kaduna State Water Cooperation (KADSWAC) documents on NRW, Focused Group Discussions (FGD) was the instrument used for government; (Kaduna State Water Regulatory Commission).

Keywords : Effect, Non-Revenue Water, Overall performance, Water Utility and Doka District.