San Diego is a rapidly changing city characterized by impressive population growth, as well as growth of infrastructure. There are two neighborhoods in particular that are seeing extensive change through redevelopment. Public policy on redevelopment is increasingly reliant on knowledge depicted through cartographic representations.

As geographers, we understand the power inherent in maps, and we have decided to examine a popular topic within the academic body of cartographic literature. The ecological fallacy is the use of data collected at a larger geographic scale to make assumptions about a smaller geographic scale. As a group, we decided to examine the differences between several demographic variables at the scale of census tracts and the scale of census blockgroups.

This webpage is intended to be a visual guide to examining possible differences between data represented at the two aforementioned scales. Click on the two neighborhoods to learn more.