Vadu Crișului is a commune located in Bihor County within the historical region of Crișana in Romania. It serves as a rural administrative division characterized by its location in the eastern part of the county.
According to census data, the population of the commune has seen slight fluctuations over the last decade. The 2011 Romanian census recorded a population of 4,009 people, while the 2021 census reported a slightly lower population of 3,784 residents.