Spain’s largest supermarket chain has tightened its grip on the retail sector after reaching a record share of the grocery market, reinforcing its dominance over rivals and highlighting changing consumer habits across the country.

Mercadona’s market share rose to around 27% in 2025, according to industry reports, extending its lead over competitors and confirming its position as Spain’s clear supermarket heavyweight.

Mercadona achieves record profits and growth in 2024

Dominance built on loyalty and private labels

The chain’s continued growth is largely attributed to customer loyalty and a shopping model built around a streamlined range of products and strong private-label brands. Many shoppers increasingly rely on a single supermarket for most of their weekly purchases, a trend that has strengthened Mercadona’s position.

While discount chains such as Lidl and Aldi continue to expand, their market share remains significantly lower, underlining the gap between Mercadona and its nearest rivals.

Ready meals drive changing habits

One of the most notable developments behind the supermarket’s growth is the rapid rise of prepared meals. Through its “Listo para Comer” concept, Mercadona has expanded its range of ready-to-eat dishes, from traditional Spanish meals to pasta, rice and pizzas.

Sales of prepared food have surged in recent years and are becoming a regular part of everyday life for many households. Longer working hours, smaller households and busier lifestyles are encouraging shoppers to look for convenient options that require little or no cooking.

The shift suggests a broader transformation in how Spaniards approach mealtimes, with supermarket-prepared food increasingly replacing home-cooked meals during the working week.

Changing consumer behaviour

The supermarket’s success also reflects wider changes in shopping patterns. Consumers are making more frequent visits but buying with greater precision, often choosing private-label products to manage costs.

By keeping its range focused and prices competitive, Mercadona has positioned itself as a reliable option for shoppers seeking value and consistency. The strategy has helped the chain maintain strong customer loyalty even as competition in the sector intensifies.

Spain’s Mediterranean diet declines as ready meals rise

A defining force in Spain’s retail landscape

Mercadona’s record market share and the growing popularity of ready meals point to a shift not only in where Spaniards shop but also in how they eat. Convenience, affordability and brand trust are increasingly shaping consumer decisions.

If current trends continue, the supermarket’s influence on Spain’s food and retail landscape is likely to remain strong. For now, its combination of private labels, streamlined stores and ready-to-eat options appears to be keeping it firmly ahead of the competition.