Abstract
1990 US Census Blocks are one of several geographies used to compile data for the U. S. Census. They can be aggregated into block groups and further, into the larger tracts. Based on SACOG Census 2000 data.
Originator
US Census Bureau, SACOG GIS Staff
Purpose
For use with 1990 US Census data.
Contact Person
Joe Concannon
SACOG
1415 "L" Street
Sacramento
CA, 95814
Phone: 916-321-9000
Email: jconcannon@sacog.org
Coordinate System
Projected:
NAD_1983_StatePlane_California_II_FIPS_0402_Feet
Geographic:
GCS_North_American_1983
Attribute
| Name
| | Description
|
| BLOCK
| |
Block number only
|
| SQ_MILES
| |
Square miles computed from "Area" field
|
| SHAPE
| |
Feature geometry.
|
| CTBLKNUM
| |
Census tract & block numbers combined
|
| CTRACT
| |
Census tract number only
|
| OBJECTID
| |
Internal feature number.
|
| Shape
| |
Feature geometry.
|
| Shape.area
| |
|
| Shape.len
| |
|