Slide 4 of 29
Notes:
Here you’ll see an excerpt from a Census 2000 Block Map for Broward County, Florida. You can see on the map the large red numbers indicating the census tract. Census tracts which we will define in a later slide, are always four primary digits. In this example you’ll note that the census tract number 204.11 is missing the its leading zero and displays only 3 primary digits. The two-digit suffix .11 indicates that the census tract 0204 has been divided due to population growth. Nested within the census tract are smaller 4-digit red numbers indicating the individual blocks. You’ll note that the map shows the road names that correspond to many of the block boundaries.
Speaker Note: The Census Bureau will prepare the following files for relationship comparisons of 1990 blocks to Census 2000 blocks:
- 1990 tabulation census block to Census 2000 collection block
- Census 2000 collection block to Census 2000 tabulation block
- 1990 Census tabulation block to Census 2000 tabulation block
These will be available beginning in May 2001, on CD-ROM and Internet: (www.census.gov/geo/www/calculate/relate/rel_blk.html).
The Census Bureau will create census block relationship information on the basis of one-to-one, one-to-many and many-to-one block(s). The purpose of the relationship files is to show how 1990 census blocks now relate to Census 2000 blocks. They do not depict the actual spatial relationships between census blocks.
