Saint-Saturnin-lès-Apt is a rural village in the Apt basin and the Luberon Regional Nature Park. It is located in the Vaucluse department, 31 miles (50 km) east of Avignon, 11.8 miles (19 km) north-east of Gordes, and 5.5 miles (9 km) north of Apt. Saint-Saturnin-lès-Apt is bordered by the municipalities of Sault to the north, Lagarde d'Apt, Saint-Christol and Villars to the east, Apt and Gargas to the south, and Roussillon, Murs, Joucas and Lioux to the west.