Background: the novel coronavirus disease (COVID-19) pandemic is the second global health emergency the world has faced in less than two decades, after the H1N1 Influenza pandemic in 2009-2010.Spread of pandemics is frequently associated with increased population size and population density.The geographical scales (national, regional or local scale) are key elements in determining the correlation between demographic factors and the spread of outbreaks.The aims of this study were: a) to collect the Mexican data related to the two pandemics; b) to create thematic maps using federal and municipal geographic scales; c) to investigate the correlations between the pandemics indicators (numbers of contagious and deaths) and demographic patterns (population size and density).Methods: the demographic patterns of all Mexican Federal Entities and all municipalities were taken from the database of "Instituto Nacional de Estadística y Geografía" (INEGI).The data of