On January 22, the U.S. Census Bureau released the five-year Public Use Microdata Sample (PUMS) file. The 2009-2013 American Community Survey (ACS) PUMS file is now available via American FactFinder and DataFerrett. Each year, the Census Bureau makes PUMS files available to the public so that researchers can more closely analyze the ACS data. The PUMS files contain records on a subsample of housing units and information from the complete ACS questionnaire. Users can employ PUMS data to run custom tabulations.
The ACS is a survey of more than 3.5 million households that includes questions about social, demographic, housing, and economic characteristics. The data are released as one-, three-, and five-year estimates. The ACS five-year estimates (2009-2013) are available down to the census tract and block group level.
Data documentation for the latest PUMS file are at http://www.census.gov/acs/www/data_documentation/pums_documentation/ and the files can be downloaded at http://www.census.gov/acs/www/data_documentation/public_use_microdata_sample/.