The Municipality of Nuevo Laredo is located in the Mexican state of Tamaulipas. Its municipal seat is Nuevo Laredo. The municipality contains more than 60 localities which the most important ones are Nuevo Laredo, El Campanario y Oradel, and Álvarez, the last two being suburbs of the city of Nuevo Laredo. By population, the municipality is the third largest in the state of Tamaulipas (behind Reynosa and Matamoros respectively). The Nuevo Laredo municipality is the northernmost in Tamaulipas, lying at the extreme northwestern tip of its narrow strip of land along the Río Grande.