The extraction of groundwater from the basement is one of the best methods of water supply to populations. Actually, the aquifers of the cracked basement are excellent water reservoirs in the area of Iriba. The objective of this study is to determine the potential sites of boreholes, which are likely to provide appropriate discharges in the area of Iriba. The combination of remote sensing and geophysical methods constitutes the methodology used in this study. In this vein, we designed a map portraying the morphological and structural alignments, which highlighted some lineaments of which major directions include NS, NE-SW, EW and NW-SE. In a bid to better characterise these locations, we undertook a geophysical study totalling 22 vertical electrical soundings (SEV) broken down into 18 electrical profiles from different directions. This study enabled to enhance the knowledge of the underground geological structure for water supply in 11 villages of the study area. It further proved that the geological structures present different depths due to the tectonics.