Abstract: Wastewater from industrial and domestic operations are disposed into surface water in most urban Nigerian cities culminating into water management problems. This study used GIS (Geographic Information System) to investigate the level of ecological impacts of domestic wastewater disposal on Bida Town. From the findings about fifty three percent (53.4%) of the sampled households have sources of ecological impacts and parts of their land surfaces negatively effected by domestic wastewater disposals. The Core region of the study area has sixty percent (60%) average negative ecological impacts and the Outer region thirty four percent (34%) average. The authors recommend; formal and non-formal education on domestic wastewater disposal, new edict on standard domestic wastewater disposal facilities and creation of GIS database for ecological impacts of domestic wastewater disposal for the study area.