Rising sea levels are an extreme event that will have a serious impact on low coastal areas, as is the case with Tabasco. At national level, the tobacco coast is one of the most vulnerable sites to such an event, so it is necessary to estimate locally the degree of vulnerability. This study therefore estimated this vulnerability by applying the Cost Vulnerability Index methodology using Geographical Information Systems. This model was adapted to the local conditions of the tabasqueña coast, as the data required by the variables that make up the methodology (waves, tides, sea levels, coastal slope, erosion rates and geomorphology) were available for the study area, thus having the opportunity to find local data on the degree of vulnerability of the coast...