Astronomer James R.A. Davenport posted this fantastic map on his blog If We Assume.
It shows every company-owned Starbucks in the U.S., which means all the franchised Starbucks locations are not shown.
Davenport writes that the farthest you can ever get from a corporate Starbucks in the mainland U.S. is 170 miles. That's a bit more than the 115-mile number posted by McDonald's, points out Paula Forbes at Eater.
Another great stat from Davenport is the number of people that live quite close to a Starbucks.
He explains:
There are ~311 million people living in the USA, with 82% living in urbanized areas. One might define urbanization in the modern era as the distance to the nearest Starbucks. An "urban" environment would therefore be anyplace within a 20 mile radius. Yes, more than 80% of the USA (that's 250,000,000 people) live within 20 miles of a Starbucks.
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