Census 2000 Data

Public Law 94-171

Demographic Profiles

Housing Unit Counts

Ranking, Comparisons, and Summaries

Census 2000 Supplementary Survey (C2SS)

Summary File 1

Summary File 2

Summary File 3

Summary File 4

Public Use Microdata Sample File (PUMS)

Census 2000 Redistricting Data (Public Law 94-171): Public Law 94-171, which amended the Census Law (Title 13, United States Code,) was enacted by Congress in 1975. The purpose of this law is to provide state legislatures with small-area census population totals for legislative redistricting. 

• Download State Files (FTP Server) (Through the U.S. Census Bureau, access is provided to the raw Census 2000 redistricting data.  Note: Not all states have the same information.)
• American FactFinder's Census 2000 Redistricting Summary File (Contains summary statistics on counts for the total population, for the population 18 years and over, and population counts by race and by Hispanic or Latino origin. Users can create custom tables by selecting from many geographic types, including states, counties, places, census tracts, and blocks.) 
• SAS Sample Program for reading NYS PL files*
• SPSS Sample Program for reading NYS PL files* 

Census 2000 Demographic Profiles--100 percent and Sample Data: A profile includes four tables that provide various demographic, social, economic, and housing characteristics for the states, counties, minor civil divisions in selected states, places, metropolitan areas, American Indian and Alaska Native areas, Hawaiian home lands and congressional districts. It includes 100 percent and sample data from the decennial censuses.  For Census 2000 data, the DP-1 table is available as part of the Summary File 1, and the other three tables will be available as part of the Summary File 3 data set. 

• All States Census 2000 Demographic Profile (This file contains all of the individual  state files combined in a single file to facilitate analysis at the national level. It may be found on the Census Bureau's FTP server)
• SF1 Demographic Profile DBF Database (8 MB download -- free, no license, use in any manner). U.S. Summary File developed by Proximity, download the first national scope Census 2000 database (100 data items for all U.S. counties, places, and other types of areas) 

Rankings, Comparisons and Summaries: This site includes ranking tables, historical comparisons, summary data, and Census Briefs and Special Reports. These are Census 2000 data products not currently searchable through American FactFinder. 

Census 2000 Housing Unit Counts: The Census 2000 Housing Unit Counts are available for each state, the District of Columbia, Puerto Rico, and for the American Indian Areas, Alaska Native Areas, and Hawaiian Home Lands.

Census 2000 Supplementary Survey (C2SS):  The survey was designed to test the operational feasibility of collecting long form-type data simultaneously, but separately from a decennial census. It used the questionnaire and methods developed for the American Community Survey to collect demographic, social, economic,and housing data from a national sample of 700,000 households. 

• C2SS Tabular and Narrative Profiles

C2SS PUMS

Census 2000 Summary File 1: SF 1 contains the 100 per-cent data which is the information compiled from the questions asked of all people and about every housing unit. See below for technical documentation. 

• README File for Census 2000 Summary File 1 Delivered via FTP
• Technical Documentation for Census 2000 Summary File 1
• Census 2000 Summary Data Profiles (New York) -- Summary File 1 data including age, sex, race/Hispanic origin, household and familiy relationship, housing ownership and vacancy.  Courtesy of New York State Data Center.
• Summary File 1 -- Advanced National File -- The Advance National release of Summary File 1 (SF 1) adds the United States, regions, divisions, metropolitan areas, and more to the previously released data.  Link to the Census Bureau's ftp site to access the raw data.

Census 2000 Summary File 2 (SF 2 contains 100-percent population and housing characteristics, but the tables in this file are iterated for a selected list of detailed race and Hispanic (Latino) origin groups, as well as American Indian and Alaska Native tribes. For this file, the lowest level of geography is the census tract.) 

• README File for Census 2000 Summary File 2 Delivered via FTP
• Technical Documentation for Census 2000 Summary File 2
• View Geographic Summary Level Sequences for SF1 and SF2 (PDF) 
• View Table Outlines for Summary File 2 (partial) (PDF)  (presently these are only the tables that have race iterations)
• View Race Iteration Categories for Summary File 2 (PDF) 
• Summary File 2 -- Advanced National File -- The Advance National release of Summary File 2 (SF 2) adds the United States, regions, divisions, metropolitan areas, and more to the previously released data.  Link to the Census Bureau's ftp site to access the raw data.

Census 2000 Summary File 3 (SF 3 presents detailed population and housing data (such as place of birth, education, employment status, income, value of housing unit, year structure built) collected from a 1-in-6 sample and weighted to represent the total population.  Data is provided down to the block group for many tabulations  but only down to the census tract for others. SF 3 also includes data by ZIP Code Tabulation Area and Congressional District.) 

• README File for Census 2000 Summary File 3 Delivered via FTP
• Technical Documentation for Census 2000 Summary File 3
• View Table Outlines for Summary File 3

Census 2000 Summary File 4 (Summary File 4 (SF 4) includes tabulations of the population and housing data collected from sample of the population. Just as in Summary File 2, the tables on SF 4 are iterated for a selected list of race and Hispanic (Latino) origin groups, for American Indian and Alaska Native tribes, as well as for ancestry groups.) 

• View Population Table Outlines 
• View Housing Table Outlines
• View Characteristics Iteration Categories for Summary File 4
• Technical Documentation for Census 2000 Summary File 4

Public Use Microdata Sample Files The U.S. Census Bureau provides two sets of Public Use Microdata Sample (PUMS) files: a 1 percent national characteristics file and 5 percent state files. These files provide the greatest possible detail, while protecting the confidential nature of the data.

• 1-Percent Public Use Microdata Sample Files
• 5-Percent Public Use Microdata Sample  Files                            
• The U.S. Census Bureau's Plans for the Census 2000 Public Use Microdata Sample Files (December 2001)
• Technical Documentation for Census 2000 Public Use Microdata Sample

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Technical Documentation

• Notes and Errata:  2000 Census of Population and Housing

• Guide to Census 2000 Redistricting Data (pdf file)

• Demographic Profile: 2000 (pdf file)  Contains the 100-percent and sample data.  Issued May 2002.

• Profiles of General Demographic Characteristics (pdf file) Contains the 100-percent data which is the information compiled from the questions asked of all people and about every housing unit.  The profiles include a total of 71 population and 25 housing data items.  Issued May 2001.

• TIGER/Line Files Technical Documentation (pdf file)

• Industry and Occupation Classification System -- Census 2000

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Questionnaires  

• Short Form (pdf file)
• Long Form (pdf file)

Census 2000 Segregation Data  

• Metropolitan Racial and Ethnic Change -- conducted by the Lewis Mumford Center for Comparative Urban and Regional Research

*Access to the New York State PL data is restricted to CSDA UNIX users.  For Non-CSDA users, go to the Census Bureau FTP server 
(see above). 

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