Abstract Migrants shape market access: They reduce international trade frictions and they affect the geographical location of demand. This article incorporates both effects in a model of inter- and intranational trade and migration calibrated to U.S. states. It estimates the elasticity of exports and imports to migrants and shows that reducing U.S. migrant population shares to 1980s levels would increase import (export) trade costs by 7% (2.5%) and decrease U.S. natives’ real wages by more than 2%. States with higher exposure to migrant consumer demand than to migrant labor competition would suffer more, as would states with higher export and import exposure.