Abstract: For decades, saline water contamination of fresh drinkable water has been a major problem in many coastal communities in Rivers State. It is suspected that with an increase in population and industrialization, this problem is going to get worse with time. This study was therefore designed to delineate saline/fresh water aquifers in some coastal communities in Rivers State, Nigeria. To this end, Vertical Electrical Sounding (VES), employing the Schlumberger array, was carried out in twelve (12) coastal communities in Rivers State. The total current electrode spread of the sounding varied from 240m-800m. Data obtained was used to estimate the apparent resistivity of the subsurface rocks, which was plotted on a log graph against half current electrode separation spacing and then analysed to determine depth to subsurface structures and their hydrogeologic characteristic. Results obtained showed that brackish and saline water were mostly present in the study areas at depth range of 5.57m to 75m while freshwater was present in some study area at an estimated depth of 8m below the surface. Therefore, there is an overlap in the depth of freshwater/saline water aquifers within Rivers State.