PUMS
PUMS (Public-Use Microdata Samples)
The data at the site above is historical data. Data for years 2000 and after are located at the American Community Survey site.
"Microdata files from the American Community Survey show the full range of responses made on individual questionnaires. For example, how one household or one household member answered questions on occupation, place of work, and so forth. The files contain records for a sample of all housing units, with information on the characteristics of each unit and the people in it."
"All identifying information is removed to ensure confidentiality. The records selected are a sample of those households that received the questionnaire. The questionnaire included questions on age, sex, tenure, income, education, language spoken at home, journey to work, occupation, condominium status, shelter costs, vehicles available, and other subjects. For more information click on the following link: Subjects in the American Community Survey PUMS datasets"
"Summary data are predefined cross tabulations of characteristics. The basic unit of analysis is a specific geographic entity -- state, county, etc. -- for which estimates of persons, families, households, or housing units in particular categories are provided."
"In microdata, the basic unit is an individual housing unit and the people who live in it. The record shows all the information associated with a specific housing unit except for names, addresses, or other identifying information."
- IPUMS USA
IPUMS USA collects, preserves and harmonizes U.S. census microdata and provides easy access to this data with enhanced documentation. Data includes decennial censuses from 1790 to 2010 and American Community Surveys (ACS) from 2000 to the present. IPUMS is from the Minnesota Population Center (MPC). - IPUMS Higher Ed
IPUMS Higher Ed disseminates the leading surveys for studying the science and engineering (STEM)
workforce in the United States, 1993-Present through the Minnesota Population Center (MPC). - U. S. Census Bureau Data Repository
The ICPSR (Inter-university Consortium for Political and Social Research) announced a new data repository of census information from the U. S. Census Bureau. This new repository preserves and disseminates survey instruments, specifications, data dictionaries, codebooks, and other materials from the U. S. Census Bureau.
