Weslaco /ˈwɛsləˌkoʊ/ is a city in Hidalgo County, Texas, United States. As of the 2010 census the population was 35,670, and in 2016 the estimated population was 40,033. It is located at the southern tip of Texas in the Rio Grande Valley near Mexican border, across the Rio Grande from the city of Nuevo Progreso, Rio Bravo, Tamaulipas.
Weslaco derives its name from the W.E. Stewart Land Company. It was the hometown of Harlon Block, one of the Marines photographed raising the flag at Iwo Jima, and of film and television actor David Spielberg.
Streets north of the railroad tracks have Spanish names, and streets south of the railroad tracks bear names in English, as a consequence of a 1921 municipal ordinance which declared that land north of the tracks be reserved for Hispanic residences and businesses, and land south of the tracks be reserved for "Anglo" residences and businesses. During World War II, sandbag production reached a peak in Weslaco, and the town declared itself the "sandbagging capital of the world".
Weslaco is part of the McAllen–Edinburg–Mission and Reynosa–McAllen metropolitan areas.
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