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A census tract is a geographic region defined for the purpose of taking a census.Usually these coincide with the limits of cities, townsor other administrative areas and several tracts commonly exist within a county. In unincorporated areasof the United States these are often arbitrary, except for coinciding with political lines.In the United States, census tracts are subdivided into block groupsand census blocks. According to the U.S. Census Bureau: Census tracts are designed to be relatively homogeneous units with respect to population characteristics, economic status, and living conditions, census tracts average about 4,000 inhabitants. |