Project Overview
The 1995 TIGER (Topologically Integrated Geographic Encoding and Referencing system) Data is available from ESRI (Environmental Systems Research Institute, Inc). Using this data offers several advantages to educators. 
  • The data can be downloaded free.
  • Data can be downloaded for every county in the United States.
  • The data is already formatted for use in ArcView.
  • A wide variety of local data is available.
Unfortunately, much of this data has been aggregated. What does this mean? Let's say that you are opening data on the location of cities. Rather than representing each city with a separate color, all cities are represented by shapes of the same color. In other words, the separate cities have been combined (aggregated) to create city regions.  

This may be useful in some contexts. However, it can also be useful to have each city identified by name and a unique color. To do this, you must disaggregate the data. This tutorial describes the process of disaggregating the 1995 Census TIGER Data available from ESRI 

For additional information on the Census TIGER Data, see the Census Data 
Documentation at the ESRI Web Site or the U.S. Census TIGER Web Site.
First Section  |  Index