QWI Public Use files
These are public-use data files as published by the U.S. Census Bureau, LEHD Program. These files are provided as a convenience for the community. No
support or guarantees are offered, but feedback is appreciated.
The most current data can be found below.
Other release directories are available
for archival purposes, but users should note that the entire (revised) time
series is released every quarter (thus constituting a release). Files are
organized by state. Some information on the structure is available in the
VRDC-provided QWI cheatsheet. Researchers wishing to use the "short" academic names for variables (a,s,jc, etc., as per notation in Abowd et al, 2009), rather than the "long" names used in the public-use files (CSV headers: HirA,Sep,FrmJbGn), can consult or run the following SAS program. For information
on formats and compression, see this page.
QWI files on this site up to R2008Q2 use 2005 geography definitions. TIGER 2005
Second Edition was used for some of the geography coding. Note however that public-use QWI are only available to the county level. You can find additional
information on these files at the Census
Bureau website TIGER 2005 page. The actual geography definition files
are no longer available on the Census Bureau website, a local copy has been
archived on this site in the TIGER 2005 SE archive site/ directory.
QWI files after R2008Q3 use TIGER 2006 Second Edition. The definition files for TIGER 2006 SE can be find on the Census Bureau's TIGER 2006SE website. An archival version can be found on this site in the TIGER 2006SE archive site/ directory.
If you are looking for OnTheMap data, you are in the wrong place. Please go to the VirtualRDC OnTheMap minisite.
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