How much is 1 gallon of milk in Puerto Rico?

A gallon of milk in Puerto Rico typically runs $4.50 to $6, somewhat higher than the US mainland average of around $4. The reason is import costs: Puerto Rico imports the majority of its food, and dairy carries shipping and refrigeration premiums on top. Major supermarket chains like Plaza or Pueblo charge close to mainland prices for branded dairy, while smaller corner stores (colmados) tend to charge more again. The wider grocery basket runs 15 to 25 percent above mainland US prices because of that import dependence. Local fresh produce remains affordable, particularly tropical fruits, plantains, and yucca, which softens the overall food bill if you cook with what’s grown on the island. For the full food and grocery cost picture, see our Puerto Rico page.