By way of Columbia University via the all-things-rural blog Daily Yonder come these interesting (albeit unsurprising) maps showing Wal-Mart and Starbuck density, state by state. (The darker the state, the higher the number of stores per capita.) Not too many surprises here. As you can see, the Southeast has the highest concentration of Wal-Marts, while Starbucks are dense on the West Coast. Also unsurprising is the red state/blue state correlation. As Daily Yonder points out:
Blue states don't have many Wal-Marts (except for New Hampshire). Red states don't have many Starbucks (except for Colorado).
But is it really a fair comparison? Sure, both are giant chains, but one sells coffee and the other sells, uh, everything. The Northeasterner in me thinks it'd be a whole lot more interesting to compare Starbucks to its regional arch-nemesis, Dunkin' Donuts.