Defining rural areas: "Nonmetro" is based on counties
The Economic Research Service, and others who analyze conditions in "rural" America, most often study conditions in nonmetropolitan (nonmetro) areas, which are defined on the basis of counties. Nonmetro counties include some combination of open countryside, rural towns (places with fewer than 2,500 people), and urban areas (with populations ranging from 2,500 to 49,999) that are not part of larger labor market areas (metropolitan areas). The 1,976 counties currently classified as nonmetro include 15 percent of the U.S. population (just over 46 million people) and 72 percent of the Nation's land area.
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