URL: http://ssdc.ucsd.edu/ssdc/san00006.html

TITLE: Block-Level Data, 1970: San Diego, California

• STUDYNO = SAN00006 (SSDC Edition)
• INVESTIGATOR = United States Department of Commerce. Bureau of the Census
• DATE-UPDATED-SSDC = July 10, 2006

STUDY DESCRIPTION: This data collection includes a block subset of the Census of Population and Housing, 1970: Summary Tape File 3A for San Diego County, California. Block complete count (100% long form) tabulations are available in 38 population and housing tables. Complete count data for population includes tabulation of total population by race (white, Negro, and other) and sex, age and sex (21 age categories), and relationship to household head; population under 18 by relationship to household head and type of household. Complete count data for housing includes tabulation by access, basement, crowding, group quarters, kitchen facilities, occupied units, plumbing facilities, rental units, rooms, toilet facilities, value, race, and others. The San Diego block file also includes totals for census tracts. A list of all table cell counts (variables) is available for these data tabulations.

The San Diego block data file was extracted and processed by the Social Science Data Collection (SSDC) staff of the University of California, San Diego from Census Bureau data processed by DUALabs, Inc. and archived at the Odum Institute. 1970 Summary Tape File 3A is also known as 1970 Summary File 3A and 1970 Summary Statistic File 3A.

The Census Bureau produced printed reports for 1970 Summary Tape File 3A. The UCSD Geisel Library maintains two copies of printed block maps in Block Statistics: San Diego, Calif. Urbanized Area (SSH Docs US Stacks C 3.224/5:970/23). The printed reports are limited to 4 tables containing 24 table cells. These printed reports are the only source of block maps for these data.

EXTENT OF COLLECTION: documentation + data file.

• CODEBOOK: (PDF) The SSDC staff produced a PDF codebook, Block-Level Data, 1970: San Diego, California that documents this data collection.

• TABLE CELL VARIABLE LIST (HTML): This file was created by the SSDC staff and contains all of the population and housing table names and table cells (variables) in the data file.

• SPSS DATA MENU (ASCII): This text file was created by the SSDC staff and is used to display the variable pick-list in the SSDC subsetting menu. This file contains all of the variable names, labels and column locations and can be edited by users of statistical software to create a syntax file.

• SPSS PORTABLE FILE (SPSS): The San Diego block group data file is available in SPSS portable format. This SPSS file can be used on any operating system that is running SPSS.

• SPREADSHEET (Excel): The San Diego block group Excel file was created by the SSDC staff for users who want to look-up summary file counts rather than perform analysis on counts.

• SSDC WORKING FILES (Unix Zip Archive): This zip archive includes all of the files used by the SSDC staff to generate the SSDC data file. See the codebook for documentation.

• DATA FILE: This study has 1 data file available in three formats: (1) ASCII (2) SPSS Portable and (3) Excel. The format of the ASCII data file is listed below.

• FILE FORMAT = ASCII Rectangular
• NUMBER OF RECORDS = 11174
• RECORD DELIMITER = Line Feed
• RECORD LENGTH = 1635 (Includes Line Feed Character)

BIBLIOGRAPHIC CITATION: Social Science Data Collection. BLOCK-LEVEL DATA: 1970, SAN DIEGO CALIFORNIA [Computer file]. La Jolla, CA: University of California San Diego Social Science Data Collection [producer and distributor], 2004.