 The municipal area, as well as the capital, is made up of the hamlets of Barco, Corniano, La Fossa, Ghiardo, and Piazzola for a total of 28.02 square kilometers.It borders Cavriago to the north, Reggio Emilia to the east, Quattro Castella and San Polo d'Enza to the south, and Montecchio Emilia to the west.Traces of the first human presence (bottoms of huts, ceramic remains, copious siliceous artefacts) in Bibbiano date back to the period between the lower Paleolithic and the Neolithic.