The village of Santa Teresina is 8.88 km from the municipality of Arzachena, to which it belongs.
The municipality of Arzachena also includes the villages or localities of San Pantaleo (6.2 km), Abbiadori (15.58 km), Baia Sardinia (10.55 km), Baja Sardinia (12.12 km), Cala Bitta (10.43 km), Cala di Volpe (16.92 km), Cannigione (6.27 km), Capo Ferro (16.84 km), Capriccioli (17.49 km), Costa Smeralda (16 km), Golfo Pevero (17.26 km), La Caldosa (5.64 km), La Conia (7.53 km), Liscia di Vacca (15.66 km), Monticanaglia (11.11 km), Mucchi Bianchi (11.00 km), Pantogia (16.26 km), Pirazzolu (7.65 km), Poltu Quatu (13.87 km), Porto Cervo (17.36 km), Romazzino (19.56 km), Surrau (7.35 km), Tanca Manna (7.79 km).
The number in brackets after each village indicates the distance in kilometers between it and the municipality of Arzachena. The village of Santa Teresina rises 38 meters above sea level.