Table 1.

Definition of food outlets by data sources and counts by outlet type.

Data set	Small food retailers Definition			Quick-service restaurants
	Outlet type	Definition	Number of outlets	Outlet type	Definition	Number of outlets
Ground truth	Corner stores	Small, locally owned businesses that primarily sell prepared foods and beverages; traditionally located at corners. Some of these stores may also have a deli counter that sells prepared foods, such as sandwiches; however, these typically occupy a small portion of the store. Corner stores that sell both food and liquor were excluded from this category	116	Fast food	Franchise restaurants that sell inexpensive food that is prepared quickly and has minimal table service	17
	Convenience stores	Similar to corner stores, but typically business is part of a larger chain	19	Take-out restaurants	Typically independently owned restaurants with minimal/no table service that serve inexpensive food that is intended to be consumed away from the restaurant’s premise	123
MFSMP	Corner stores Small grocery stores	Small-format grocery stores that are typically independently owned and operated; annual sales <$2 million	46	Fast food chain local restaurant	National, regional, and chain name restaurants that offer take-out-ready food prepared quickly and with little to no table service and a consistent menu across locations	6
			1
	Convenience stores	Stores that sell food products, but where food is not the main business (the majority of sales are made up from gas, cigarettes, pharmacy items, home good, etc.); includes chain and gas station convenience stores, drug stores or pharmacies, and discount/dollar stores; typically chain operated	9	Carry-outs	Independently owned restaurants serving to-go prepared foods, typically high in calories, salt, and fat	88
	Behind-glass stores	Similar to corner stores, but all of the goods for sale and the clerk are physically behind Plexiglas; typically found in areas with high crime	27
InfoUSA	Convenience stores	Convenience stores as identified by NAICS code 445120	21	Limited-service restaurants	Primary or secondary NAICS code 722513	31
	Small grocery stores	Grocery stores as identified by NAICS code 445110 and has less than 4 employees	50	Full-service restaurants	Primary NAICS code 722511 with the following words in the restaurant name: carryout/carry-out, chicken, trout, pizza, Chinese/China	34