Trasierra is a municipality located in the province of Badajoz, Extremadura, Spain. According to the 2014 census, the municipality has a population of 659 inhabitants.Local celebrationsFiesta del Santísimo Cristo del Socorro or Fiesta de los Manoletes, 20 April.San Isidro Labrador, 15 MaySan Antonio de Padua, 13 JuneFiestas Patronales. Santa Marta, 29 July.Fiesta de La Chaquetía, 1 November.