Here is a list of all the cafes/venues on Caffeine86 from the Americas, sorted by country/region, and then in alphabetical order.
So far: United States of America (3).

“☆” (a star) = permanently closed.
“+”  (a plus sign) = relocated, so technically still exists but will be different from the one in the post.

-United States of America-

Alchemy Coffee [#192]
Elixr Coffee Roasters [#190]
Square One Coffee – 13th St. [#191]