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Income Data for ZIP Code Areas, 1966 (ICPSR 59)

Principal Investigator(s): United States Department of Treasury. Internal Revenue Service


This data collection contains aggregate information from income tax returns for 5-digit ZIP-code areas for the entire United States. Data are provided for three income classes with adjusted gross income returns of under $3,000, $3,000 to $10,000, and over $10,000. Information is provided on gross income, taxes paid, personal exemptions, total number of joint returns filed by married couples, and aggregate number of returns filed by all taxpayers. These data, originally prepared by the Internal Revenue Service, were supplied to ICPSR in computer-readable form by Philip Lankford of the University of California at Los Angeles.

Access Notes

  • Data in this collection are available only to users at ICPSR member institutions. Please log in so we can determine if you are with a member institution and have access to these data files.


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Study Description


United States Department of Treasury. Internal Revenue Service. Income Data for ZIP Code Areas, 1966. ICPSR00059-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 1999. https://doi.org/10.3886/ICPSR00059.v1

Persistent URL: https://doi.org/10.3886/ICPSR00059.v1

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Scope of Study

Subject Terms:    income, income tax, Internal Revenue Service, personal exemptions, tax returns, taxes, taxpayers, zip code areas

Geographic Coverage:    United States

Time Period:   

  • 1966

Universe:    All five-digit ZIP-code areas for the entire United States in 1966.

Data Type(s):    administrative records data, aggregate data, survey data

Data Collection Notes:

Part of the data file contains the names of cities and states in ASCII text format.


Data Source:

Internal Revenue Service Individual Master File, 1966


Original ICPSR Release:   1984-05-11



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