Does anyone know of a source for historical zip code boundaries? The shapefiles are on the ESRI Data & Maps DVDs, which we have back to 1996, but a researcher is looking for data back to 1980, at which point Data & Maps did not exist.

Thanks,

Jennie

Jennie Murack

Geospatial Data Librarian and Statistics Specialist

MIT Libraries, 7-238

617-258-6680

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