Nuevo Laredo is a city located in the Municipality of Nuevo Laredo in the Mexican state of Tamaulipas. The city lies on the banks of the Rio Grande, across from the United States city of Laredo, Texas. The 2010 census population of the city was 373,725. Nuevo Laredo is part of the Laredo-Nuevo Laredo Metropolitan Area with a total population of 636,516. The municipality has an area of 1,334.02 km² (515.07 sq mi). Both the city and the municipality rank as the third largest in the state.