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The primary conceptual difficulty in creation of this database occurs because of the fact that much of the data that goes into this database is provided in aggregate form, and the data is from different and uncoordinated sources.
Census data: The dataset for redistricting (PL94-171) is based on the level of the census block and has data on population, ethnicity, age, and housing.
Voter data: Collected from the statewide registered voter file, Statewide Database collects statistics by using voter partisan affiliationm, date of birth, surname, address, and voter history. These collected statistics are reported at the census block level.
Election results: Organized by SOV (Statement of Vote) precincts, this data is collected from each of the 58 county elections offices and is used to analyze racially polarized voting under the VRA.
For redistricting purposes, the registration and electoral data needs to be placed into census blocks.