Nuevo Laredo is a city in the Municipality of Nuevo Laredo in the Mexican state of Tamaulipas. The city lies on the banks of the Rio Grande, across from Laredo, United States. The 2010 census population of the city was 373,725. Nuevo Laredo is part of the Laredo-Nuevo Laredo Metropolitan Area with a population of 636,516. The municipality has an area of 1,334.02 km2 (515.07 sq mi). Nuevo Laredo is considered the “customs capital of Latin America” because of its high volume of international trade operations in the region, and number 1 in importance for US inland commercial traffic. Both the city and the municipality rank as the third largest in the state.

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. 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. The city of Nuevo Laredo contains approximately 97.5% of the total population of the municipality.