Elsa is a city in Hidalgo County, Texas, United States. The population was 5,660 at the 2010 census, and in 2018 the estimated population was 7,107. It is part of the McAllen–Edinburg–Mission and Reynosa–McAllen metropolitan areas.
Elsa is located in eastern Hidalgo County at 26°17′52″N 97°59′34″W (26.297672, -97.992770), 9 miles (14 km) north of Weslaco and 11 miles (18 km) east of Edinburg on State Highway 107 and FM 88. It is bordered to the east by the city of Edcouch and to the west by the unincorporated community of La Blanca.
