This study seeks to investigate the economic costs of flood on selected households in Adamawa State, Nigeria using descriptive survey research design (tables and percentages). The population of the study comprised 400 households selected from three local governments covering the three senatorial zones of the state. Though the study relied on purposive sampling technique, Taro Yamane formula was used to determine the sample size. Data collection was via self-constructed questionnaire with reliability index of 0.81. The results showed that the selected households suffered economic costs (in terms of man-hour loss, cleaning cost and health cost) resulting from frequent/reoccurring incidents of flood in Adamawa State. Based on the findings of the study, it was recommended among other that government should improve on rescue and intervention programmes as well as liaising with the Cameroonian government in addressing persistent overflow of the Lagdo Dam.