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is a city in Hidalgo County, Texas, United States. The population was 45,408 at the 2000 census. It is one of the principal cities of the McAllen–Edinburg–Mission Metropolitan Statistical Area, which includes all of Hidalgo County.
According to the United States Census Bureau, the city has a total area of 24.1 square miles (62.5 km²), of which, 24.1 square miles (62.5 km²) of it is land and 0.04% is water.