The literature on vulnerability to flooding highlights the multiple dimensions of risk factors. However, little research has analysed the joint effects of environmental and social variables on flood risk at the household level in African cities. We use an interdisciplinary approach to analyse the differentiated significance of these dimensions for the status of 'flood victim' in Abidjan, the major city of Côte d'Ivoire. The data used were collected in a survey of 503 households residing in two contrasting neighbourhoods of Abidjan. Modelling data with logistic regressions, the results show that physical variables (the slope of the housing plot), environmental variables (liquid and solid waste disposal) and social variables (the gender of the head of household or the composition of the household) are factors jointly associated with flood risk. The multidimensional nature of vulnerability