Liga IV – Bihor County is considered one of the most prolific series of the fourth tier, giving over time a large number of teams for the Liga III, or Divizia C, as it was known until 2006, among them, were names such as Bihoreana Marghita, Crișul Aleșd, CS Oșorhei, CSC Sânmartin, Luceafărul Oradea, Minerul Ștei, Minerul Șuncuiuș, Olimpia Salonta, Oțelul Ștei, Unirea Valea lui Mihai, Tricolorul Oradea or Voința Oradea.