Edinburg ( ED-in-burg) is a city in and the county seat of Hidalgo County, Texas, United States. The population was 74,569 as of the 2010 census, and in 2019 the estimated population was 101,170, making it the second largest city in Hidalgo County, and the third largest city in the larger Rio Grande Valley region.
Edinburg is part of the McAllen–Edinburg–Mission and Reynosa–McAllen metropolitan areas.
In 1908, John Closner, William Briggs, Argyle McAllen, Plutarco de la Viña and Dennis B. Chapin developed a new community at this site. The town square was located at the current crossroads of U.S. Highway 281 and State Highway 107. The town was named "Chapin" in honor of one of the developers. A local myth relates that Edinburg became the county seat of Hidalgo County in a dramatic, nighttime covert operation in which the county records were removed from the previous county seat. However, historical records show more practical reasons. The original Hidalgo County Courthouse in the city of Hidalgo was under frequent danger of flooding because of the town's proximity to the Rio Grande, which sometimes encroached on the building. Additionally, Texas law required that the courthouse be close to the geographic center of the county.