Alamo is a city located in southern Hidalgo County within the Rio Grande Valley region of Texas, United States. Situated in an area characterized by citrus groves and vegetable farming, the city serves as a noted winter resort and retirement destination near the Mexico–U.S. border.
The city functions as a gateway to several significant locations, including the Santa Ana National Wildlife Refuge and the Mexican town of Nuevo Progreso, Tamaulipas, via U.S. Route 281. According to the 2020 census, Alamo had a population of 19,493.