Industrialisation and unplanned urbanisation in different city areas of Bangladesh have greatly distorted the natural water resources. The present study was undertaken to evaluate ionic contamination level including heavy metals in effluents, surface and groundwater of Rangpur city, Bangladesh. Total 29 samples (24 effluents and surface water and 5 groundwater) were collected from the city area and analysed for various physicochemical parameters at the Department of Agricultural Chemistry, Bangladesh Agricultural University, Mymensingh during January to September 2017. The concentrations of heavy metals (Fe, Mn, Cu, Pb, Cr, and Zn) in water samples were measured by an atomic absorption spectrophotometer (AAS). Major cation chemistry showed their dominance in the order of Na+> Ca2+> Mg2+= K+ and Ca2+> Na+> Mg2+> K+ for effluents and surface and groundwater, respectively. Most of the water samples were rated as unsuitable for