The New York City Department of Health lists more than 20,000 restaurants on their "Restaurant Inspection Information" web site.
Puerto Rico has 213 Subway restaurants.
842mi only 656mi used
There are 33,095 locations in 91 countries world wide. I have not been able to find the answer for locations in the US, but the Zagat Survey® categorizes it in the 5,000 plus category. Will update...
200
Khan Market in Delhi
Visit Wah Fung in Chinatown, NYC
Salumeria Rosi Restaurant, New York
Visit Snacky's in Little Italy, NYC