Aim: This study was carried out to assess concentration status of some heavy metals in water along River Dilimi, Nigeria. The Nigerian inland water bodies have been subjected to various forms of degradation due to pollution. River Dilimi in Jos North of Plateau state capital is one of such endangered inland water bodies. Activities around and in the river has led to discharge of various heavy metal pollutants into the aquatic environment rendering water unsuitable for its intended purposes. Methodology and Results: Six (6) water samples were collected at the upper, centre and lower section of the river at the 20 and 120 cm depth, for every six (6) weeks making a total of eighteen (18) samples, Analyzed at Nigerian Institute of Mining and Geosciences, Jos. The water samples collected were pre-treated with few drops of concentrated Nitric acid, and digested with Aqua-regia in the ratio of 3: 1 for an hour. Different standard solutions were prepared for AAS analysis under Beer-Lambert method of metal analysis using Atomic Absorption Spectrophotometer (AAS). The data obtained were subjected statistical analysis. The results obtained from analyzed water samples were alarming, iron, lead, cadmium and Manganese were above the recommended threshold by 277, 6,400, 1,233 and 580% accordingly, while zinc and copper were within permissible limit. Conclusion, significance and impact study: River Dilimi can be said to be highly concentrated with hazardous metals of concern like Fe, Pb, Cd and Mn. This as a result of bioaccumulation will affect human and animal health, aquatic life and crop productivity.