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 Special economic urban area (SEUA) A minor civil division in the Northeastern States, Michigan, Minnesota, and Wisconsin treated by the Census Bureau as equivalent to a place for statistical purposes in the economic censuses.

Standard consolidated area (SCA) The SCA was a forerunner of the CMSA. Two SCAs (for the New York and Chicago areas) existed between 1959 and 1975. These SCAs were combinations of SMSAs, although the New York SCA also included two counties that were not within any SMSA. The SCA was replaced by the SCSA. See also consolidated metropolitan statistical area, metropolitan area, metropolitan statistical area, primary metropolitan statistical area, standard consolidated statistical area, standard metropolitan area, standard metropolitan statistical area.

Standard consolidated statistical area (SCSA) The SCSA was a forerunner of the CMSA. An SCSA was a combination of two or more SMSAs that had substantial commuting between them and where at least one of the SMSAs had a population of 1,000,000 or greater. SCSAs were first defined in 1975 and used until June 1983. See also consolidated metropolitan statistical area, metropolitan area, metropolitan statistical area, primary metropolitan statistical area, standard consolidated area, standard metropolitan area, standard metropolitan statistical area.

Standard metropolitan area (SMA) SMA was the first term used for official metropolitan areas as defined by the then Bureau of the Budget. SMAs were first defined in 1949 for the 1950 decennial census, and the term was used until replaced in 1959 with the term SMSA. See also consolidated metropolitan statistical area, metropolitan area, metropolitan statistical area, primary metropolitan statistical area, standard consolidated area, standard consolidated statistical area, standard metropolitan statistical area.

Standard metropolitan statistical area (SMSA) In 1959, the term SMSA replaced SMA for the official metropolitan areas defined by the then Bureau of the Budget. The term SMSA was used until MSAs, CMSAs, and GlossaryG-45