McAllen is the largest city in Hidalgo County, Texas, United States, and the 23rd-most populous city in Texas. It is located at the southern tip of the state in the Rio Grande Valley, on the Mexico–United States border. The city limits extend south to the Rio Grande, across from the Mexican city of Reynosa. McAllen is about 70 mi west of the Gulf of Mexico. As of the 2020 census, McAllen's population was 142,210. It is the fifth-most populous metropolitan area (McAllen–Edinburg–Mission) in the state of Texas, and the binational Reynosa–McAllen metropolitan area counts a population of more than 1.5 million.
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