Matamoros is located in Saltillo city, Mexico at the 25.527, -103.2285 coordinates. Distance from Matamoros to other cities. are listed below, click on the city name to find distance between. Distance from Matamoros to Torreon 19 km, to Monclova 237 km, to Piedras Negras 443 km. The green marker indicates the location of Matamoros.