Data Classification

 Data Classification Methods

This map shows the same census data for Escambia County, Florida, four different ways. Even though each classification method has its advantages and disadvantages, it's the cartographer's responsibility to determine maps purpose and audience before selecting the classification method.

Equal Interval Method

This map was created to show the percentage of the population of African Americans living within each census tract of Escambia County, Florida. The data was classified by the equal interval method.