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Census of Population and Housing, 2000 [United States]: Public Law (P.L.) 94-171 Adjusted Data (ICPSR 13400) RSS

Principal Investigator(s):

Summary:

The numbers contained in this study are released pursuant to the order of the United States Court of Appeals for the Ninth Circuit in Carter v. Department of Commerce, 307 F.3d 1084. These numbers are not official Census 2000 counts. These numbers are estimates of the population based on a statistical adjustment method, utilizing sampling and modeling, applied to the official Census 2000 figures. The estimates utilized the results of the Accuracy and Coverage Evaluation (A.C.E.), a sample survey intended to measure net over- and undercounts in the census results. The Census Bureau has determined that the A.C.E. estimates dramatically overstate the level of undercoverage in Census 2000, and that the adjusted Census 2000 data are, therefore, not more accurate than the unadjusted data. On March 6, 2001, the Secretary of Commerce decided that unadjusted data from Census 2000 should be used to tabulate population counts reported to states and localities pursuant to 13 U.S.C. 141(c) (see 66 FR 14520, March 13, 2001). The Secretary's decision endorsed the unanimous recommendation of the Executive Steering Committee for A.C.E. Policy (ESCAP), a group of 12 senior career professionals within the Census Bureau. The ESCAP, in its recommendation against the use of the statistically adjusted estimates, had noted serious reservations regarding their accuracy. In order to inform the Census Bureau's planned October 2001 decision regarding the potential use of the adjusted estimates for non-redistricting purposes, the agency conducted extensive analyses throughout the summer of 2001. These extensive analyses confirmed the serious concerns the agency had noted earlier regarding the accuracy of the A.C.E. estimates. Specifically, the adjusted estimates were determined to be so severely flawed that all potential uses of these data would be inappropriate. Accordingly, the Department of Commerce deems that these estimates should not be used for any purpose that legally requires use of data from the decennial census and assumes no responsibility for the accuracy of the data for any purpose whatsoever. The Department, including the U.S. Census Bureau, will provide no assistance in the interpretation or use of these numbers. The collection contains four tables: (1) a count of all persons by race (Table PL1), (2) a count of Hispanic or Latino and a count of not Hispanic or Latino by race of all persons (Table PL2), (3) a count of the population 18 years and older by race (Table PL3), and (4) a count of Hispanic or Latino and a count of not Hispanic or Latino by race for the population 18 years and older (Table PL4).

Series: Census of Population and Housing, 2000 [United States] Series

Access Notes

  • These data are freely available.

Dataset(s)

WARNING: Because this study has many datasets, the download all files option has been suppressed, and you will need to download one dataset at a time.

WARNING: This study is over 150MB in size and may take several minutes to download on a typical internet connection.

DS0:  Study-Level Files
DS1:  Alabama - Download All Files (15,083 KB)
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DS2:  Alaska - Download All Files (5,936 KB)
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DS4:  Arizona - Download All Files (14,106 KB)
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DS5:  Arkansas - Download All Files (13,053 KB)
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DS6:  California - Download All Files (44,797 KB)
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DS8:  Colorado - Download All Files (13,975 KB)
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DS9:  Connecticut - Download All Files (8,599 KB)
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DS10:  Delaware - Download All Files (5,598 KB)
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DS11:  District of Columbia - Download All Files (4,768 KB)
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DS12:  Florida - Download All Files (27,143 KB)
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DS13:  Georgia - Download All Files (18,514 KB)
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DS15:  Hawaii - Download All Files (6,148 KB)
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DS16:  Idaho - Download All Files (9,103 KB)
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DS17:  Illinois - Download All Files (30,212 KB)
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DS18:  Indiana - Download All Files (17,541 KB)
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DS19:  Iowa - Download All Files (14,114 KB)
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DS20:  Kansas - Download All Files (14,418 KB)
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DS21:  Kentucky - Download All Files (11,383 KB)
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DS22:  Louisiana - Download All Files (13,914 KB)
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DS23:  Maine - Download All Files (7,428 KB)
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DS24:  Maryland - Download All Files (10,718 KB)
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DS25:  Massachusetts - Download All Files (12,769 KB)
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DS26:  Michigan - Download All Files (22,076 KB)
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DS27:  Minnesota - Download All Files (16,613 KB)
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DS28:  Mississippi - Download All Files (12,746 KB)
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DS29:  Missouri - Download All Files (19,229 KB)
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DS30:  Montana - Download All Files (8,884 KB)
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DS31:  Nebraska - Download All Files (11,727 KB)
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DS32:  Nevada - Download All Files (8,245 KB)
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DS33:  New Hampshire - Download All Files (6,361 KB)
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DS34:  New Jersey - Download All Files (16,121 KB)
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DS35:  New Mexico - Download All Files (11,752 KB)
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DS36:  New York - Download All Files (29,071 KB)
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DS37:  North Carolina - Download All Files (20,052 KB)
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DS38:  North Dakota - Download All Files (8,541 KB)
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DS39:  Ohio - Download All Files (21,932 KB)
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DS40:  Oklahoma - Download All Files (15,468 KB)
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DS41:  Oregon - Download All Files (12,766 KB)
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DS42:  Pennsylvania - Download All Files (25,986 KB)
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DS44:  Rhode Island - Download All Files (5,934 KB)
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DS45:  South Carolina - Download All Files (13,555 KB)
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DS46:  South Dakota - Download All Files (8,542 KB)
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DS47:  Tennessee - Download All Files (15,724 KB)
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DS48:  Texas - Download All Files (47,446 KB)
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DS49:  Utah - Download All Files (9,139 KB)
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DS50:  Vermont - Download All Files (5,705 KB)
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DS51:  Virginia - Download All Files (14,695 KB)
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DS53:  Washington - Download All Files (17,370 KB)
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DS54:  West Virginia - Download All Files (9,335 KB)
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DS55:  Wisconsin - Download All Files (16,032 KB)
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DS56:  Wyoming - Download All Files (7,557 KB)
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DS72:  Puerto Rico - Download All Files (9,139 KB)
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Study Description

Citation

United States Department of Commerce. Bureau of the Census. Census of Population and Housing, 2000 [United States]: Public Law (P.L.) 94-171 Adjusted Data. ICPSR13400-v3. Ann Arbor, MI: Inter-university Consortium for Political and Social Research[distributor], 2013-05-24. doi:10.3886/ICPSR13400.v3

Persistent URL:

Export Citation:

  • RIS (generic format for RefWorks, EndNote, etc.)
  • EndNote XML (EndNote X4.0.1 or higher)

Scope of Study

Subject Terms:   census data, ethnicity, household composition, housing, housing conditions, population, states (USA)

Geographic Coverage:   Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York (state), North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, United States, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming

Time Period:  

  • 2000

Date of Collection:  

  • 2000

Universe:   All persons and housing units in the United States in 2000.

Data Types:   census/enumeration data

Data Collection Notes:

The data are provided in three segments (files) per state: the Geographic Header, Tables PL1 and PL2, and Tables PL3 and PL4. The Geographic Header segments are fixed-format ASCII text files, while the Table segments are comma-delimited ASCII files. The Geographic Header has 80 variables and the Table segments have 149 variables each, for a total of 378 variables when the segments are combined.

The SAS Merge Program (Part 90) is provided, but not supported, by the United States Census Bureau. Users will need to merge the three segments for each state into a SAS dataset to use the data effectively.

The data file part numbers are not consecutive. They correspond to FIPS codes for states.

Methodology

Data Source:

self-enumerated questionnaires

Extent of Processing:  ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection:

  • Created variable labels and/or value labels.

Version(s)

Original ICPSR Release:  

Version History:

  • 2013-05-24 Multiple Census data file segments were repackaged for distribution into a single zip archive per dataset. No changes were made to the data or documentation.
  • 2006-01-12 All files were removed from dataset 90 and flagged as study-level files, so that they will accompany all downloads.
  • 2006-01-12 All files were removed from dataset 86 and flagged as study-level files, so that they will accompany all downloads.
  • 2006-01-12 All files were removed from dataset 84 and flagged as study-level files, so that they will accompany all downloads.
  • 2006-01-12 All files were removed from dataset 83 and flagged as study-level files, so that they will accompany all downloads.
  • 2006-01-12 All files were removed from dataset 81 and flagged as study-level files, so that they will accompany all downloads.
  • 2004-08-26 All the data definition statements (Parts 83, 84, and 90) were replaced because of errors. The codebook was replaced with an updated one from the Bureau of the Census.

Utilities

Metadata Exports

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