Laredo-Nuevo Laredo Metropolitan Area in the context of World Gazetteer

Laredo–Nuevo Laredo (UN/LOCODE: USLRD & MXNLD), otherwise known as the "Four-State Area" or the "Quad State Area", is one of six transborder agglomerations along the U.S.-Mexican border. The city of Laredo is situated in the U.S. state of Texas on the northern bank of the Rio Grande and Nuevo Laredo is located in the Mexican State of Tamaulipas in the southern bank of the river. This area is also known as the Two Laredos or the Laredo Borderplex. The area is made up of one county in the U.S (Webb County in Texas) and three municipalities in Mexico (Nuevo Laredo Municipality in Tamaulipas, Hidalgo Municipality in Coahuila, and Anáhuac Municipality in Nuevo León). Two urban areas (the Laredo Metropolitan Statistical Area and the Zona Metropolitana Nuevo Laredo [Nuevo Laredo Metropolitan Zone]), three cities, and 12 towns make the Laredo–Nuevo Laredo Metropolitan area. The two sides of the Borderplex are connected by four International Bridges and an International Railway Bridge. The Laredo–Nuevo Laredo Metropolitan area has a total of 636,516 inhabitants according to the INEGI Census of 2010 and the United States Census estimate of 2010. According to World Gazetteer this urban agglomeration ranked 157th largest in North and South America in 2010 with an estimated population of 675,481. This area ranks 66th in the United States and 23rd in Mexico.