Catalog of Holdings

Study Report

Study Number: AC-025-001-2-1-United States-GeoLytics-1970

Subject Area: County

Bibliographic Citation: Census of population and housing, 1970 [United States]: fourth count summary tape.  [machine-readable data file] / Department of Commerce. Bureau of the Census  [principal investigator(s)] / Ease Brunswick, NJ: GeoLytics Inc.  [distributor].

Originating Archive Number: CCD1970

Date Accessioned: 1/21/2003

Number of Files Received: 0

Comments: This second release of CenusCD 1970 has some important changes. 1. The CrypKey portion has been removed from the installation. 2. Corrections were made to the county data. 3. The Data Viewer has been updated. Run the setup program to install the program to D:\CCD1970 on PEPPER. The Guest account permission is set to Change. 9/06 Program is installed on Ketchup and Mustard. 7/09 Beer and Wine replaced Ketchup and Mustard. 5/14 An ISO image was created on the network drive for this CD-Rom.

Access Status: Access limited to UW Campus

Date Ordered: 10/10/2002

Documentation: User's guide is hard copy and machine-readable. The counts are divided into 3 groups: geographic identifiers, population counts, and housing counts.

Abstract: Data source for this CD is from the fourth count public use summary tapes of 1970 Census of Population and Housing. Its geographic areas include nation region, state, county, tract, MCD, and place. There are over 8,500 demographics and geographic identifiers exist for each geographic area. A full set of 1970 tract maps, along with mapping software are included. Use can select any geographic area and all pertinent variables to create a subset. Map boundaries can be export in Arc View Shape format or MapInfo MID/MIF format. A count description report will be created to document each subset. In order to protect confidentiality the 1970 data is sometimes suppressed by US Census Bureau. Data is suppressed if its universe does not meet certain pre-established thresholds. These thresholds are usually between 5 and 15. For example, if the white population in a geographic area is less than 15, the demographics for white population will be suppressed. Smaller geographic areas are more likely to have suppressed than larger. No data is suppressed at the state level.

Media/File Reports:

7022 (CD-ROM)
7023 (CD-ROM)
6028 (CD-ROM)