Creating a racial dot density map using QGIS

This demo shows how to download US Census data from censusreporter.org and use QGIS to create a racial dot map, where each dot represents one or more people, color-coded by race. To do this, we create a QGIS polygon style that uses multiple "random marker fill" symbol layers.
This map style was inspired by the Racial Dot Map created by Dustin Cable at the University of Virginia: demographics.coopercenter.org...