Rural-Urban Continuum Codes
The Rural-Urban Continuum Codes (RUCC) are a classification scheme from the USDA Economic Research Service that distinguishes US counties by their metropolitan or nonmetropolitan status and degree of urbanization. Metro counties are classified by the population size of their metro area, and nonmetro counties are classified by degree of urbanization and adjacency to a metro area. The codes provide a county-level measure of rurality widely used for socioeconomic and geographic analysis. RUCC serves as an upstream source for the Cancer Registry KG, supporting socioeconomic and geographic linkage.
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