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CDE FTP
Welcome to the University of Wisconsin Center for Demography and Ecology
FTP site. Interested users may download files directly from this web
page or via a direct ftp call:
ftp mariah.ssc.wisc.edu
Files are located in the pub subdirectory.
A readme.1st file is located in each directory explaining file naming conventions. Files are available for selected files in .Z compressed UNIX ASCII format, and for other selected files in .Z compressed SAS export format.
If you need assistance reading a compressed SAS transport file or working with compressed SAS files on Unix you can refer to the following 'How to' documentation created by the Social Science Computing Cooperative at the Universitiy of Wisconsin (How to #1 and #28).
Note that these files and any accompanying documentation are available free of charge. However, the Center for Demography and Ecology has neither the time or labor power to provide technical expertise on the contents or programming of these files. If you have a problem reading these files we will attempt to help you.
For probelms reading these files contact the Data Librarian:
Jack Solock
jsolock@ssc.wisc.edu
Available Files:
ASCII Format:
1. 1970 Census Summary Tape Files. Files for all available states and
the District of Columbia for the 1970 4th Count A and C population and
housing files may be downloaded. Fourth Count Summary tapes contain
20%, 15%, and 5% sample population characteristics. Fourth Count File
A contains sample data for census tracts.Fourth Count C contains data
from selected census summary areas: state level and its components;
state consolidated area (SCA), standarard metropolitan statistical areas
(SMSA) and SMSA components; and other components (each urbanized area
[UA], each central city of the UA [urban portion], urban fringe of the
UA, place with 2,500 or more population, including New England towns,
and county. Note: The STF4C files do NOT include minor civil divisions
(MCD). Complete documentation for these files can be downloaded, free
of charge, from the Inter-University Consortium for Political and Social
Research (ICPSR) at the University of Michigan.
http://www.icpsr.umich.edu/search-basic.html
Search for Study # 9014 or #8107
Fourth Count A files:
Population:
ftp://mariah.ssc.wisc.edu/pub/stf704a/AP/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/stf704a/AP
Housing:
ftp://mariah.ssc.wisc.edu/pub/stf704a/AH/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/stf704a/AH
Fourth Count C files:
Population:
ftp://mariah.ssc.wisc.edu/pub/stf704c/CP/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/stf704c/CP
Housing:
ftp://mariah.ssc.wisc.edu/pub/stf704c/CH/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/stf704c/CH
2.Current Population Surveys: NOTE: Older CPS codebooks use "words" instead of columns to define data locations. The formula for calculating the columnar positions with thes older codebooks is:
Column = ((word # - 1) * 6) + char
Note: Other historical CPS files can be found at:
Inter-University Consortium for Political and Social Research (ICPSR):
http://www.icpsr.umich.edu/cgi/indx.prl?path=ICPSR&column=name&query=C
Scroll to or "find in page" "Current Population Survey". (without the quotes
and
National Bureau of Economic Research (NBER)
http://www.nber.org/data/cps.html
Standardized historical supplements can be purchased for selected supplements from
Unicon Research Corporation CPS Utilties
http://www.unicon.com/
A. March CPS: Annual Demographic File. 1963 file is available. In addition to the basic CPS questions, interviewers asked supplementary questions in March about money income received in the previous calendar year, educational attainment, household and family characteristics, marital status and geographical mobility. For 1963, the data file has been broken up into family and person records. The documentation for this file (Adobe Acrobat .pdf format) can be found at the National Bureau of Economic Research:
http://www.nber.org/cps/cpsmar59-67.pdf
1963 March CPS
ftp://mariah.ssc.wisc.edu/pub/cps0363/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/cps0363
B. March/April Match Files: Child Support and Alimony. 1988 and 1990 files are available. The March portion of this file, also known as the Annual Demographic File, provides the usual monthly labor force data, but, in addition, provides supplemental data on work experience, income, noncash benefits, and migration. The April portion of this file, the child support and alimony supplement, was asked of all females 15 years of age and older. For 1988 the data file and documentation (Adobe Acrobat .pdf format) are available. For 1990, the data file, technical documentation (Adobe Acrobat .pdf format), and an electronic data dictionary (ASCII format) are available.
1988 March/April Match File:
ftp://mariah.ssc.wisc.edu/pub/cps030488/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/cps030488
1990 March/April Match File:
ftp://mariah.ssc.wisc.edu/pub/cps030490/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/cps030490
C. June CPS: 1971 and 1972 files are available. These are the 1971 and 1972 Fertility and Birth Expectations files. In addition to the core questions, the files include data on birth history and birth expectations. Included with both files are electronic data dictionaries (Adobe Acrobat .pdf format).
1971 June CPS:
ftp://mariah.ssc.wisc.edu/pub/cps0671/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/cps0671
1972 June CPS:
ftp://mariah.ssc.wisc.edu/pub/cps0672/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/cps0672
D. August CPS: 1967 and 1968 files are available. These are the 1967 and 1968 Smoking files. In addition to data from the base CPS survey, these files contain smoking habit supplements. This supplement obtains information on smoking habits of all civilian household members 17 years of age and over. The supplement provides data on type and frequency of tobacco product use, whether or not the respondent is currently smoking, as well as the amount of time since respondent last used a tobacco product. Included with both files are electronic data dictionaries (Adobe Acrobat .pdf format).
1967 August CPS:
ftp://mariah.ssc.wisc.edu/pub/cps0867/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/cps0867
1968 August CPS:
ftp://mariah.ssc.wisc.edu/pub/cps0868/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/cps0868
E. CPS March/May Match File: 1973 file is available. The March portion of this file, also known as the Annual Demographic File, provides the usual monthly labor force data. The May portion of this file contains the basic monthly CPS, and a supplement with questions concerning dual job holding. The supplement gathers data on hours worked, earnings, occupation, and industry codes for individuals holding a second job. Included with the file is an electronic data dictionary (Adobe Acrobat .pdf format).
1973 March/May Match File:
ftp://mariah.ssc.wisc.edu/pub/cps030573/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/cps030573
E.CPS January 1973 Job Finding/Job Tenure Supplement. This dataset is split into two files: 1) Base monthly CPS; 2) Supplemental CPS file. See the readme.1st file for more detail. Included with the file is an electronic data dictionary (Adobe Acrobat .pdf format).
1973 January Job Finding/Job Tenure Supplement:
ftp://mariah.ssc.wisc.edu/pub/cps0173/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/cps0173
3. US Census Bureau Public Use Microdata Sample E--1980. This PUMS file was constructed by the Census Bureau for researchers at the Center for Demography and Ecology at the University of Wisconsin-Madison. The file provides greater detail concerning metro/non-metro and rural/urban distinctions between household and individuals. To achieve this level of detail, some geographic data (state, county group) have been removed from the file. Complete documentation for the PUMS file that these files are based on can be downloaded, free of charge, from the Inter-University Consortium for Political and Social Research (ICPSR) at the University of Michigan.
http://www.icpsr.umich.edu/search-basic.html
Search for studies 8101, 8170, or 8114.
Differences in column location and content between the overall PUMS data dictionary and the data dictionary of these data files are explained in the recspec.e file in the FTP directory.
1980 PUMS E:
ftp://mariah.ssc.wisc.edu/pub/pums80/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/pums80
--------------------------------------------------------------------------------
SAS Export Files:
1. CENSUS 2000
A. PL94_171. Files are available for all states. Also included is technical
documentation "Census 2000 Redistricting Data (Public Law 94-171) Summary
File," (.pdf format), which can also be found at:
http://www.census.gov/prod/www/abs/pl94-171.pdf
This file contains summary population counts for two universes,total
population and population 18 years and over. The data were derived from
the basic questions asked on all census questionnaires. These are often
called the 100-percent questions. This file contains four tables: a
count of all persons by race; a count of the population 18 years and
over by race; a count of Hispanic or Latino and a count of not Hispanic
or Latino by race for all persons; and a count of Hispanic or Latino
and a count of not Hispanic or Latino by race for the population 18
years and over.
ftp://mariah.ssc.wisc.edu/pub/SASXPT/census2000/pl94_171/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/SASXPT/census2000/pl94_171
B. Profiles of General Demographic Characteristics. One file contains data for the US and all states. Also included is technical documentation "Census 2000 Profiles of General Demographic Characteristics," (.pdf format) which can also be found at:
http://www.census.gov/prod/cen2000/doc/ProfileTD.pdf
This file contains more than 40,000 profiles for states, counties, cities, towns and townships, as well as tribal are, Hawaiian homelands and other areas. The table contains nearly 100 data itmes, plus percentage distributions. Note that SAS truncates variable labels at 40 characters in transport files. See the technical documentation for full variable names.
ftp://mariah.ssc.wisc.edu/pub/SASXPT/census2000/demo_profiles/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/SASXPT/census2000/pl94_171
2. County and City Databook. Files are available for 1944-1977, 1983, and 1988. The files are a compendia of data gathered from both governmental and private agencies. Detailed data are provided for the following general areas: population, employment, vital statistics, school enrollment, health, income, public assistance and social security, banking, housing , government employment and finance, elections, crime, manufacturing, retail and wholesale trade, selected services, mineral industries, farm population, agriculture and weather. Included with the transport files are electronic data dictionaries (ASCII format). Complete documentation for these files can be downloaded, free of charge, from the Inter-University Consortium for Political and Social Research (ICPSR) at the University of Michigan.
http://www.icpsr.umich.edu/search-basic.html
Search for Studies 7735, 7736, 8256, or 9251.
1944-1977 County and City Databook
ftp://mariah.ssc.wisc.edu/pub/SASXPT/ccdb44_77/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/SASXPT/ccdb44_77
1983 County and City Databook
ftp://mariah.ssc.wisc.edu/pub/SASXPT/ccdb_1983/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/SASXPT/ccdb_1983
1988 County and City Databook
ftp://mariah.ssc.wisc.edu/pub/SASXPT/ccdb_1988/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/SASXPT/ccdb_1988
--------------------------------------------------------------------------------
3. Current Population Surveys. Included are Annual Demographic Surveys (March) for 1990-2001, Fertility and Marital History Supplements (June) for 1990 and 1995, Fertility and Birth Expectations Supplements (June) for 1990, 1992, 1994, and 1995, and School Enrollment Supplements (October) for 1997. Complete documentation for these files (with the exception of the June 1992 CPS. Complete documentation can be downloaded, free of charge, from the Inter-University Consortium for Political and Social Research (ICPSR) at the University of Michigan. Documentation (Adobe Acrobat .pdf format) for the June 1992 Supplement is available in the June 1992 subdirectory
Search for "Current Population Survey" in Study title.
http://www.icpsr.umich.edu/search-basic.html
March 1990-2001 CPS
ftp://mariah.ssc.wisc.edu/pub/SASXPT/cps/03/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/SASXPT/cps/03
June 1990, 1992, 1994, 1995 CPS
ftp://mariah.ssc.wisc.edu/pub/SASXPT/cps/06/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/SASXPT/cps/06
October 1997 CPS
ftp://mariah.ssc.wisc.edu/pub/SASXPT/cps/10/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/SASXPT/cps/10
4. US Census Bureau Public Use Microdata Sample (1%) 1990. This file contains records representing 1% samples of the housing units in the US and the persons within them. Selected group quarters persons are also included. The file contains individual weights for each person and housing unit which, when applied to the individual records, expand the sample to the total population. Complete documentation can be downloaded, free of charge, from the Inter-University Consortium for Political and Social Research (ICPSR) at the University of Michigan.
http://www.icpsr.umich.edu/search-basic.html
Search for Study # 9951
1990 1% PUMS
ftp://mariah.ssc.wisc.edu/pub/SASXPT/pums90/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/SASXPT/pums90
5. US Census Bureau Public Use Microdata Sample (1%) 1980. This file contains stratified 1% samples of housing units and the persons in them, as enumerated in the 1980 census. Complete documentation can be downloaded, free of charge, from the Inter-University Consortium for Political and Social Research (ICPSR) at the University of Michigan.
http://www.icpsr.umich.edu/search-basic.html
Search for Study # 8170
1980 1% PUMS
ftp://mariah.ssc.wisc.edu/pub/SASXPT/pums80/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/SASXPT/pums80
6. US Census Bureau State Public Use Sample (5%) 1970. This file contains a representative sample of the records from the 1970 census sample questionnaires. The primary sample size is one-in-a-hundred, or one sample unit (household, vacant unit, or person in group quarters) for every one hundred such units in the population. For each household, information is provided about the housing unit itself as well as the characteristics of each person therein. Complete documentation can be downloaded, free of charge, from the Inter-University Consortium for Political and Social Research (ICPSR) at the University of Michigan.
http://www.icpsr.umich.edu/search-basic.html
Search for Study # 18.
1970 5% State PUS
ftp://mariah.ssc.wisc.edu/pub/SASXPT/pus70/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/SASXPT/pus70
7. National Survey of Families and Households Wave I: The National Survey of Families and Households includes interviews with 13,007 respondents from a national sample. The sample includes a main cross-section of 9,637 households plus an oversampling of blacks, Puerto Ricans, Mexican Americans, single-parent families, families with step-children, cohabiting couples and recently married persons. One adult per household was randomly selected as the primary respondent. Several portions of the main interview were self-administered to facilitate the collection of sensitive information and to ease the flow of the interview. The average interview lasted one hour and forty minutes. In addition, a shorter self- administered questionnaire was given to the spouse or cohabiting partner of the primary respondent. For more information about the files see:
Complete documentation can be found at the NSFH website:
http://www.ssc.wisc.edu/nsfh/avail.htm
NSFH I:
ftp://mariah.ssc.wisc.edu/pub/SASXPT/nsfh1/
Direct ftp:
ftp mariah.ssc.wisc.edu
login anonymous
password [your email address]
cd pub/SASXPT/nsfh1
8. National Center for Health Statistics Files. Available at present are Mortality Detail files from 1990-1996, and Natality Detail Files from 1978-1987, and from 1991 to 1995.
NOTE!!! YOU MUST AGREE TO THIS DATA DISCLAIMER BEFORE USING THIS DATA
WARNING - DATA USE RESTRICTIONS!
Read Carefully before Using
The Public Health Service Act (Section 308 (d))
provides that the data
collected by the National Center for Health Statistics
(NCHS), Centers
for Disease Control and Prevention (CDC), may be
used only for the
purpose of health statistical reporting and analysis.
Any effort to determine the identity of any reported
case is prohibited
by this law.
NCHS does all it can to assure that the identity
of data subjects cannot
be disclosed. All direct identifiers, as well
as any characteristics
that might lead to identification, are omitted from
the dataset. Any
intentional identification or disclosure of a person
or establishment
violates the assurances of confidentiality given
to the providers of the
information. Therefore, I will:
1. Use the data in this
dataset for statistical reporting and
analysis
only.
2. Make no use of the identity
of any person or establishment
discovered
inadvertently and advise the Director, NCHS, of any
such discovery.
3. Not link this dataset
with individually identifiable data from
other NCHS
or non-NCHS datasets.
4. If the identity
of any person or establishment should be discovered
inadvertently, then
a. no use will be made of this
knowledge,
b. the Director of NCHS will be
advised of the incident,
c. the information that would identify
an individual or
establishment
will be safeguarded or destroyed as requested by
NCHS, and
d. no one else will be informed
of the discovered identity.
By using these data, you signify your agreement to comply with the
above-stated statutorily based requirements.
Last updated 08/22/2005 by Jack Solock jsolock@ssc.wisc.edu
Special Librarian, CDE Information Services
© 2000 University of Wisconsin Center for Demography and Ecology
http://www.ssc.wisc.edu/cde/library/info.htm