The California town of Santa Fe Springs has 560 Starbucks locations within 25 miles, making it the highest concentration of Starbucks locations in the country.
According to Foodio54.com, Santa Fe Springs even beats out Los Angeles (435), New York City (392), and Chicago (279) for number of Starbucks locations within 25 miles. Even Starbucks mecca Seattle has less, at 311 locations.
The areas with the least number of Starbucks (those without a Starbucks for 100 miles are more) are Alaska, Montana, and North Dakota.
Source
- Starbucks Saturation Results (Foodio54.com)