Edinburg is one of the principal cities of the McAllenEdinburgMission metropolitan area, which includes all of Hidalgo County. Edinburg is a city in and the county seat of Hidalgo County, Texas, United States. The population was 77,100 at the 2010 census. The University of TexasPan American, the only fully accredited four-year university in the Rio Grande Valley, is located in Edinburg. Medal of Honor recipient Alfredo (Freddy) Cantu Gonzalez was born in 1946 in Edinburg.