There are many shopping facilities in the town, including supermarkets, greengrocers, fishmongers. The supermarkets offer a wide range of products, from fresh food to household goods. Some of the best known supermarkets in Castelsardo are Conad, Eurospin and Superconcas. For fresh produce, there are also many vegetable shops in town. Here you can buy regional products such as fruit, vegetables and herbs.

The pastry shop L´arte del gusto makes the best specialties of Sardinia. It´s worth a visit. 

If you need a pharmacy in Castelsardo, the most famous pharmacies in town are Farmacia Pilo and La Farmoteka Di Melis Francesca Ditta.