Büyükçekmece District is situated on the European side of Istanbul, with a coastline along the Marmara Sea. However, factors such as climate change, increasing population leading to uncontrolled urbanization, and improperly implemented stream rehabilitation projects expose the district to flood risks. The main objective of this research is to produce a flood risk map of Büyükçekmece District and contribute to the development of flood management strategies by examining its correlation with socioeconomic factors. In this study, fundamental factors affecting flood risk such as slope, aspect, elevation, land use, geological structure, proximity to river, soil type, and precipitation were identified. Using the Analytic Hierarchy Process (AHP), the weights of these criteria were calculated, and flood risk maps were generated based on these weights. Maps based on neighborhood boundaries considering socioeconomic indicators were produced using open data to address social vulnerability in high-risk areas. According to the analysis results, neighborhoods that should be prioritized in disaster management preparedness and damage reduction stages were identified. In conclusion, this research aims to shed light on the development of more effective and comprehensive strategies against flood risks in Büyükçekmece District. It emphasizes the critical role of local socioeconomic dynamics and information in determining flood management strategies.