Census Bureau April 6, 2007 – Federal Register Recent Federal Regulation Documents
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Census Block Group Program for the 2010 Census-Proposed Criteria
Block groups are statistical geographic divisions of a census tract, defined for the tabulation and dissemination of decennial census data. Block groups also will be used to tabulate and publish estimates from the American Community Survey (ACS) \1\ after 2010. Each block group comprises a reasonably compact and contiguous cluster of census blocks; up to nine block groups can be contained within a single census tract.
Census Tract Program for the 2010 Census-Proposed Criteria
Census tracts are relatively permanent small-area geographic divisions of a county or statistically equivalent entity \1\ defined for the tabulation of decennial census data and selected other statistical programs. Census tracts also will be used to tabulate and publish estimates from the American Community Survey (ACS) \2\ after 2010. The primary goal of the census tract program is to provide a set of nationally consistent small, statistical geographic units, with stable boundaries, that facilitate analysis of data across time.
Census Designated Place (CDP) Program for the 2010 Census-Proposed Criteria
Census designated places (CDPs) \1\ are statistical geographic entities representing closely settled, unincorporated communities that are locally recognized and identified by name. They are the statistical equivalents of incorporated places, with the primary differences being the lack of both a legally defined boundary and an active, functioning governmental structure, chartered by the state and administered by elected officials. CDPs defined for the 2010 Census also will be used to tabulate American Community Survey, Puerto Rico Community Survey, and Economic Census data after 2010, and potentially data from other Bureau of the Census (Census Bureau) censuses and surveys.
Census County Division (CCD) and Equivalent Entities Program for the 2010 Census-Proposed Change and Proposed Criteria
CCDs and equivalent entities are statistical geographic entities established cooperatively by the Bureau of the Census (Census Bureau) and officials of state and local governments in 22 states \1\ where minor civil divisions (MCDs) either do not exist or are unsatisfactory for reporting decennial census data. The primary goal of the CCD program has been to establish and maintain a set of subcounty \2\ units that have stable boundaries and recognizable names.