Population + 2000 U.S. Census + Consumer Data + Global
This dataset consists of polygonal boundaries for the 2000 Census Block Groups with 2000 Block Group level data. A census block group (BG) is a cluster of blocks that have the same first digit in their identifying number within a census tract. For example Block Group 2 (BG 2) within a census tract includes all blocks numbered from 2000 to 2999. Block groups generally contain between 600 and 3000 people with an optimum population size of 1500.
This dataset consists of polygonal boundaries for U.S. Counties with 2000 Block Group level data at the county level . Counties are the primary legal divisions of most States. In Louisiana the county equivalents are known as parishes. In Alaska beginning with 1980 census the county equivalents include organized boroughs and census areas delineated for statistical purposes by the State and U.S. Census Bureau. In Maryland Missouri Nevada and Virginia on or more cities are outside of any county organization and are treated as county equivalents for statistical purposes.