Frontera is a municipality and city located in the state of Coahuila, Mexico. It is situated within the northern region of the country, characterized by its proximity to the international border with the United States.
The city serves as a local hub within the Coahuila region, primarily defined by its geographical position and its role in the regional infrastructure of northeastern Mexico. While it shares a name with other locations, this specific municipality is distinct for its placement within the state's administrative boundaries.