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This report provides a one-digit code for each of 10 classifications for all U.S. counties. The classifications describe a county by degree of urbanization and nearness to a metro area. These codes allow researchers to break county data into finer residential groups than the standard metro-nonmetro classification of the Bureau of the Census.
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Stored only when both papers are in the corpus — 275 citations exist upstream.
Imported from OpenAlex (CC0) — nothing here is generated.