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METDIST
Metropolitan district
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Description

METDIST identifies each household's Metropolitan District of enumeration. Prior to the introduction of Standard Metropolitan Areas (SMAs) in 1950, the Census Bureau used a metropolitan classification known as Metropolitan Districts. These metropolitan areas were made up of large urban centers and "thickly settled" adjacent minor civil divisions. Metropolitan Districts, as implemented in the IPUMS, use a variation of the Census Bureau's 1940 definition. IPUMS Metropolitan Districts are composed of urban centers with populations of at least 50,000, along with contiguous minor civil divisions that have population densities of at least 150 persons per square mile. The criteria for designating urban centers as central cities are almost identical to those used for SMAs. See METAREA for more details about SMA classification.