Entity and Attribute Overview:
BLKS00 was created from Census 2000 TIGER/Line File data and built to POLYGON topology. The coverage contains the attributes FIPSSTCO, COUNTY, COUSUB00, COUSUB00NA TRCT00, BLKGRP00, PLC00, PLC00NA, BLK00, BLK00NUM, BLKNAME, STFIDBLK00, POP00, CENTAG, USDSTRCT03, SNDSTRCT03, HSDSTRCT03. The item STFIDBLK00 is a calculated combination of these items that uniquely identifies a Census Block within the State of Maine. The item CENTAG may be used to select a single feature for labeling and statistical purposes. The item COUSUB00 contains the Federal Information Processing Standard (FIPS) code a single 5 character code field used by the Bureau of the Census to identify the Census County Division to which the block belongs. Likewise TRCT00 (Tract), BLKGRP00 (Block Group), and PLC00 (Designated Place if applicable). All Census geographies, cross tabulated in the dataset, can be mapped using the ID included for each level of census geography, i.e. for Census County Subdivisions COUSUB00, Census Tracts STFIDTRCT00, Census Block Groups STFIDBLKGRP00, Census Designate Places PLC00, Census Blocks STFIDBLK00. CAUTION: care must be taken to ensure referential integrity in relates and joins to IDs provided.