Fontanelle borders the following municipalities: Codogné, Gaiarine, Mansuè, Oderzo, Ormelle, San Polo di Piave, Vazzola.

As the name suggests, Fontanelle is an area rich in springs and originally housed a rain forest of oaks.

In Roman times the area was certainly inhabited, given the proximity to municipium of Oderzo and the passage of a direct route to Serravalle.

The importance of Fontanelle grew during the Middle Ages as the seat of a parish under the diocese of Ceneda, and with jurisdiction over the churches of Cimetta Codogné, Fontanellette, and Vallonto Visnà.

With the arrival of the Venetian Republic, Fontanelle was confirmed feud of Porcia, themselves vassals of the Patriarchate of Aquileia.