If you know exactly two things about Seattle, they are probably that: 1.) We have a Space Needle, and 2.) We have great coffee. "Travel + Leisure" agrees, once again naming the Emerald City as the very best for a java jolt.
Seattle was chosen not only because of that little billion-dollar coffee empire that happens to be based in our backyard, but also because there's power in numbers. By volume alone, Seattle has traditionally dominated when it comes to having a clutch of coffee shops per capita -- in 2010, the city had 35 coffee shops per 100,000 residents.
We also have the corner on the quality market, as well; Vivace founder David Schomer is widely regarded as an authority in crafting fine espresso, and his instructional videos about latte art basically started the trend. Seattle's coffee shops are also extremely particular about what they buy and brew. As "T+L" points out, sourcing matters to Seattle's cafes.
Carried by now-national roaster Stumptown, Portland comes in a close second on the list, followed by New Orleans, Providence, RI, and San Francisco.