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Assessment of vulnerability is the primary objective of flood hazard management. 5 One of the most significant purposes of flood vulnerability appraisal is to make a precise 6 relationship between the theoretical conceptions of flood vulnerability and the ground level 7 management policies. A variety of approaches defined by many researchers to evaluate 8 vulnerability is available, as such a selection of the most suitable methodology is essential for 9 policymakers. The purpose of the present study is to review all the vulnerability methods 10 floating over the research universe and compare their benefits and drawbacks. This study 11 presents a significant examination of more than 250 selected articles published from 1980 to 12 2020 related to the assessment of vulnerability to determine their competence in the estimation 13 of flood vulnerability. The findings show that statistical methods and weighting allocation were 14 the most extensively used methods to estimate flood vulnerability. Most of the vulnerability 15 assessment methods are centered around the single type of hazard, ie, flood. As such, the 16 results recommend the necessity for developing a new integrated vulnerability assessment 17 framework applicable to worldwide considering multiple risks. 18