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Historical Delineation Files

June 30, 1993

Delineations based on application of 1990 metropolitan area standards to 1990 census data.

June 30, 1990

Delineations used for presenting metropolitan area statistics in 1990 decennial census publications.

June 30, 1983

Delineations based on application of 1980 metropolitan areas standards to 1980 census data.

June 30, 1981

Delineations used for presenting metropolitan area statistics in 1980 decennial census publications.

April 27, 1973

Delineations based on application of 1971 metropolitan area statistics in 1980 decennial census publications.

February 23, 1971

Delineations used for presenting metropolitan area statistics in 1970 decennial census publications.

October 18, 1963

Delineations based on application of 1958 metropolitan area standards to 1960 census data.

November, 1960

Delineations used for presenting metropolitan area statistics in 1960 decennial census publications.

October, 1950

Delineations used for presenting metropolitan area statistics in 1950 decennial census publications.

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