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COUNTY BOUNDARIES AND P.L.94-171 COVERAGE AND DATABASE
Description:
"In December 1975, Congress passed Public Law (P.L.) 94-171. It specifies that within 1 year after Census Day, the Census Bureau must send all State legislatures and Governors the data they need to redefine districts for the State legislature. State officials may, of course, use the same data to delineate revised districts for the U.S. House of Representatives." "To be responsive to P.L. 94-171, the Census Bureau established a voluntary program for those States that wished to receive population tabulations for voting districts or comparable geographic entities. (They were called 'election precincts' for the 1980 census.) The Census Bureau would furnish data for these entities, along with the data for blocks, block groups, census tracts/block numbering areas, places, and other entities that all States would receive in the P.L. 94-171 file." This coverage has the P.L. 94-171 data aggregated from the block level to the county level. This aggregation gives a more accurate population count. County boundaries, and therefore state boundaries, are also included for all states in EPA Region 8.