This study, conducted by IOM in June 2019, provides information on the migration dynamics in Tapachula, at the southern border of Mexico. The activities were undertaken along with government institutions, two shelters (Jesús el Buen Pastor and Diocesano El Belén), civil society organizations and universities, such as the Mexican University Institute (IUDM) in Tapachula. Its goal is to provide preliminary impressions about the migration flows in the municipality, their attention capabilities and the characteristics of the migrant population in Tapachula.