GIS 6005 Lab 4 - Percent Population Change of Colorado Counties, 2010 to 2014

Above is a map of population change in Colorado from 2010 to 2014 by counties. I used a 6 class color palette with natural breaks, with a break at 0. Above zero are 3 classes of positive values to represent degrees in population increase, shown in greens. Below zero are three classes to represent population decline, shown in reds. The color palette was generated in Color Brewer.
The legend shows the breaks in more of a sentence structure, with class breaks described in the format '_% to _%'. This way, it is clear what the symbols represent, both in terms of the span of values per color and the fact that we are looking at percents and not numbers.
There is a callout extending from the legend stating what the states population change was.

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