Sorry, Costco, it’s a tie between these two competitors.

In other words, keeping customers satisfied and happy is of the utmost importance.

This, in turn, has given different brands a chance to shine while others may be faltering.

Shopping cart in the middle on an aisle at the supermarket - grocery shopping concepts

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The yearly index is based on data from interviews with roughly 41,000 customers from January to December 2024.

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This, in part, helped the brand score an 82 out of 100.

It also, unsurprisingly, earned its highest marks in Southern states.