Dane gospodarcze · 4/6/2007
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. ---------------------------------------------------------------------------