categorization of villages, cities, towns,etc. Learn more about various ways rural is defined. What is Rural? over at the USDA Economic Research Service website definition What is Rural? USDA: What Is Rural? definition definition categorization of villages, cities, towns,etc. over at the USDA Economic Research Service website USDA: What is Rural? definition More info on rural definitions from the USDA define rural as non-metro Rural Definitions in Illinois definition over at the USDA Economic Research Service website at the USDA Economic Research Service website over at the USDA Economic Research Service website definition of rural