Census 2000

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     Data Sources
  • Online Extraction
  • GIS Products
  • DVD/CDs
  • File for FTP
      Overview of Products
  • Short Form (100%)
  • Long Form (Sample)
  • Maps-Spatial Data
  • Census at a Glance
      General Information
  • Race - Hispanic Origin
  • Comparing 2000-1990
  • Other Library Holdings
     

Data Sources

  • Online Data Extraction
  • GIS and Mapping Products
    • For New York City
      This guide details sources for demographic data for New York together with sources for the corresponding boundary files.
    • For the United States
      This pages lists sources for Census boundaries from both a national and New York State perspective.
  • CD/DVD Products 
    • Summary File Products from Bureau of Census
      • All Summary Files are published on DVDs.
      • The DVDs have a powerful Windows-based extraction program for making both simple and complex data requests. 
      • The most frequently used files are on the DSSC workstations in US Census 2000 folder.
      • The other are in the DSSC Data Service.
    • Public Use Microdata (PUMS)
      PUMS data on CD-ROM come an interface that does cross tabulation on either the 1% or 5% sample. It is available in DSSC Data Service.
  • Files for FTP Download
    Because of the size and complexity of the files for FTP, the options listed above may be preferable.
    • Census Bureau's Census 2000 Gateway
      Links to an FTP site for each of the available data products are listed in the "Data Releases" list. Links to the American FactFinder interface for creating custom tables are also given.
    • ICPSR Catalog
      All the Census 2000 files, the full files, program code (SAS and SPSS), meta-data, and tips for working with the files are found here.
      Search for Census 2000 and limit to series, Census of Population and Housing 2000.

Overview of Products

This section explains the way the files were published regardless of the access methods as described above. 

  • Selected Products From the Short Form
    Counts reported from the short form represent exact counts as these questions were asked of 100% of the population. They are reported on the following products.
    • Summary File 1 (SF1)
      Data for all topics tabulated for the nation and by basic race categories and Hispanic/non-Hispanic populations.  Note that New York City successfully challenged the SF1 counts for detailed Hispanic Origin and a revised file was issued.  The revised file is available in the CU Data Catalog,
    • Summary File 2 (SF2)
      Data for all topics tabulated for the nation and by detailed race categories and Hispanic/non-Hispanic populations.
    • Demographic Profiles (DP1)
      Preformatted reports summarizing, for named geographic locations, data reported on the short form. Data are derived from SF1.
    • Re-Districting File (PL-94)
      Selected topics tabulated for the purpose of congressional reapportionment.
  • Selected Products From the Long Form
    Counts reported from the long form represent estimated counts based on the large sample of the population who completed the long form. The topics cover those asked on the short form plus a wide range of socio-demographic topics. They are reported on the following products:
    • Summary File 3 (SF3)
      Data for all topics tabulated for the nation and by basic race categories and Hispanic/non-Hispanic populations.
    • Summary File 4 (SF4)
      Data for all topics tabulated for the nation for 336 population groups (groups included detailed race and Hispanic origin groups, and selected ancestry).
    • Demographic Profiles
      Preformatted reports summarizing, for named geographic locations, data reported on the short form. Data are derived from SF3.
    • Microdata
      The responses from individual questionnaires are released as ASCII file called Public Use Microdata (PUMS) For details about microdata, refer to the Census Microdata Overview page.
      • PUMS 1%
        A sample of 1% of the housing units that filled out the long form questionnaire.
      • PUMS 5%
        A sample of 5% of the housing units that filled out the long form questionnaire.
  • Special Topic Products
    These analyses are based on either a subject or geography:
    • Worker Flow
    • School Districts
    • Migration
    • Transportation Planning
    • Congressional District (has both 100% and sample data)
  • Maps and Spatial Data
    All the geographies supported by the Census Bureau were originally published in the TIGER® Line Files product. These are the basis for the spatial data products described above.
  • Census 2000 Data Products At a Glance
    A list of all 2000 Data products with their release date, medium in which they are published, and their geographic coverage.

General Information

Assistance in using these or any other data resources is available on-site in the DSSC during reference hours or by emailing dssc.data@columbia.edu.