In WCRC’s America 100, Costco is No. 10 with 79.43 and Walmart is No. 29 with 74.64. The same profiles show higher reported revenue for Walmart. The revenue figures also refer to fiscal years ending in different months, so a reader comparing company size should keep the reporting periods visible. Costco profile · Walmart profile
The WCRC Power Score combines evidence on several dimensions of brand power. Revenue provides business context. The published overall scores establish a 4.79-point difference within this US cohort, while the two profiles by themselves do not establish how much of the difference comes from membership, pricing or convenience. America 100 · America 100 methodology
A fair retail comparison would start with a common shopping task, such as a household’s weekly grocery run. Compare a matched basket and record package sizes, travel time and any membership cost. Keep separate the shoppers who want a month’s supply and those who need a few items that evening. The same store format could fare quite differently across those groups. That is the useful next question behind the ranking: which shopping occasion does each brand make easier, and how would a shopper recognise that advantage?