Each redistricting dataset merges the electoral data the SWDB collected and processed over the preceding decade with the most current census data (PL94-171). The result is a census block level dataset that allows for longitudinal analysis of electoral data over time on the same unit of analysis. Electoral data consist of the Statements of Vote (SOV) and Statements of Registration (SOR) for each statewide election. These data are collected from the Registrars of Voters for each of the 58 California counties with each election.
The SWDB collects the Statement of Vote and the Statement of Registration along with various geography files from each of the 58 counties for every statewide election. The Statement of Vote is a precinct level dataset and precincts in California change frequently between elections. The goal of the SWDB is to make election data available that can be compared over time, on the same unit of analysis – a precinct, a census block or a census tract.
The following files are the "adjusted data" for the 2000 Census for the State
of California by county. The Census Bureau recently released these data for
every State after the 9th Circuit Court of Appeals ruled in Carter v. U.S.
Department of Commerce, 307 F3d. 1084 (2002) that the Freedom of Information Act required their release.
Even though these data are public, they were not published on the Census'
web site. The Bureau instead set up a process by which any interested party
can request the data from them. The Bureau released a disclaimer along with
To make it a little easier for those that just can't wait to get their hands
on this data set, we have made it available for download via the Statewide Database.
We have posted only the California files on our web site. If you need files
for other states, please visit the Institute for Social Science Research Data Archive.
These "adjusted data" were developed by the Census Bureau as part of the Operational
Plan for Census 2000. For more information on Census 2000 Operations please
visit here. You can find more information about how these data were created by reading the Census document Accuracy and Coverage Evaluation survey documentation from the Census site. This link
provides detailed documentation for the A.C.E.
If you use these data and you have some interesting findings, we would appreciate it if you would share them
with us. Also, if you crunch data for California from this site that might
be interesting to other users and you don't mind sharing them, please let
us know so we can put them up in our report section.
The summary file
The statewide data file
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