For a large one-stop grocery run, use a supermarket such as Chedraui, Soriana Híper or Bodega Aurrera. For fresh produce and everyday local commerce, a municipal market such as José Castillo Tielemans is a different kind of option.
Quick answer
Large supermarket in San Ramón: Chedraui
Large supermarket in Fátima: Soriana Híper
Supermarket / discount format in El Relicario: Bodega Aurrera
Fresh food + local commerce: Mercado José Castillo Tielemans
Neighborhood shopping in San Ramón: Mercado Popular de San Ramón
Bulk/membership shopping: Sam’s Club, if a membership model makes sense for you
Store hours and services can change. Check the linked Place page for current opening information.
Chedraui San Cristóbal
Chedraui San Cristóbal de las Casas is on Diagonal Hermanos Paniagua in Barrio de San Ramón. Chedraui’s store directory identifies the branch.
Use it for a conventional supermarket run covering groceries and common household or personal-care items.
Soriana Híper
Soriana Híper San Cristóbal is on the Pan-American corridor / Boulevard Juan Sabines in Fátima. Choose it or Chedraui mainly by distance from your accommodation.
Bodega Aurrera
Bodega Aurrera San Cristóbal is on Eje Vial 1 in El Relicario. Current official documentation identifies the branch. Use it when a supermarket/discount-store format suits you.
Mercado José Castillo Tielemans is for produce, food and everyday local commerce. The municipal government describes it as the city’s first municipal market and an important supply center.
Mercado Popular de San Ramón is a smaller neighborhood option if you are already staying in San Ramón.
MERPOSUR, the Mercado Popular del Sur, is a larger public-market option south of the historic center. Municipal reporting confirms active market operations and food-preparation stalls; use current local information for the actual stall mix and access details rather than assuming a fixed supermarket-style inventory.